Although it's a color lead, it offers the same erasability as standard graphite leads, allowing you to erase and rewrite with ease.
Ideal for foundational learning practices such as "marking errors in red and erasing them once corrected."
The lead is also approximately 40% stronger at the tip compared to our previous color lead, making it more resistant to breakage.
Bold and Smooth with Ultra-Strong Lead
Uni's Nano-Diamond lead delivers bold, smooth lines thanks to a high-density, uniform arrangement of graphite particles. By evenly dispersing nano-diamonds between these particles, internal friction is reduced, resulting in an exceptionally smooth writing experience.
Each lead contains approximately 400 million nano-diamonds.
The case features a two-step sliding lid, allowing you to control the number of leads dispensed at a time.
Bold and Smooth with Ultra-Strong Lead
Uni's Nano-Diamond lead delivers bold, smooth lines thanks to a high-density, uniform arrangement of graphite particles. By evenly dispersing nano-diamonds between these particles, internal friction is reduced, resulting in an exceptionally smooth writing experience.
Each lead contains approximately 400 million nano-diamonds.
The case features a two-step sliding lid, allowing you to control the number of leads dispensed at a time.
uni Lead Refill Set ? Includes Sustainable Cardboard Pack and Reusable Empty Case
Easy refilling into the included case
Simply peel off the paper seals one by one and take the leads directly from the refill pack to load them into the included empty case. This makes refilling quick and easy, allowing you to reuse the case again and again instead of throwing it away.
Eco-friendly cardboard refill packaging
The leads are stored in a slim 4mm-thick cardboard sheet, designed to highlight the natural texture of the material. The sealing stickers are also made of paper, making the entire package recyclable as paper waste (used paper/cardboard). This product is environmentally conscious in both its refill method and packaging materials.
Large capacity ? Equivalent to about four regular cases
This refill pack contains enough lead to fill approximately four cases, making it ideal for users who go through a lot of lead. It also meets the growing demand for bulk purchasing. Keeping a refill on hand ensures you can stay focused on your studies without worrying about running out of lead.
*Please refill one case at a time. The full contents (1 to 4 refills) cannot be loaded all at once.
uni Lead Refill Set ? Includes Sustainable Cardboard Pack and Reusable Empty Case
Easy refilling into the included case
Simply peel off the paper seals one by one and take the leads directly from the refill pack to load them into the included empty case. This makes refilling quick and easy, allowing you to reuse the case again and again instead of throwing it away.
Eco-friendly cardboard refill packaging
The leads are stored in a slim 4mm-thick cardboard sheet, designed to highlight the natural texture of the material. The sealing stickers are also made of paper, making the entire package recyclable as paper waste (used paper/cardboard). This product is environmentally conscious in both its refill method and packaging materials.
Large capacity ? Equivalent to about four regular cases
This refill pack contains enough lead to fill approximately four cases, making it ideal for users who go through a lot of lead. It also meets the growing demand for bulk purchasing. Keeping a refill on hand ensures you can stay focused on your studies without worrying about running out of lead.
*Please refill one case at a time. The full contents (1 to 4 refills) cannot be loaded all at once.
uni Lead Refill Set ? Includes Sustainable Cardboard Pack and Reusable Empty Case
Easy refilling into the included case
Simply peel off the paper seals one by one and take the leads directly from the refill pack to load them into the included empty case. This makes refilling quick and easy, allowing you to reuse the case again and again instead of throwing it away.
Eco-friendly cardboard refill packaging
The leads are stored in a slim 4mm-thick cardboard sheet, designed to highlight the natural texture of the material. The sealing stickers are also made of paper, making the entire package recyclable as paper waste (used paper/cardboard). This product is environmentally conscious in both its refill method and packaging materials.
Large capacity ? Equivalent to about four regular cases
This refill pack contains enough lead to fill approximately four cases, making it ideal for users who go through a lot of lead. It also meets the growing demand for bulk purchasing. Keeping a refill on hand ensures you can stay focused on your studies without worrying about running out of lead.
*Please refill one case at a time. The full contents (1 to 4 refills) cannot be loaded all at once.
uni Lead Refill Set ? Includes Sustainable Cardboard Pack and Reusable Empty Case
Easy refilling into the included case
Simply peel off the paper seals one by one and take the leads directly from the refill pack to load them into the included empty case. This makes refilling quick and easy, allowing you to reuse the case again and again instead of throwing it away.
Eco-friendly cardboard refill packaging
The leads are stored in a slim 4mm-thick cardboard sheet, designed to highlight the natural texture of the material. The sealing stickers are also made of paper, making the entire package recyclable as paper waste (used paper/cardboard). This product is environmentally conscious in both its refill method and packaging materials.
Large capacity ? Equivalent to about four regular cases
This refill pack contains enough lead to fill approximately four cases, making it ideal for users who go through a lot of lead. It also meets the growing demand for bulk purchasing. Keeping a refill on hand ensures you can stay focused on your studies without worrying about running out of lead.
*Please refill one case at a time. The full contents (1 to 4 refills) cannot be loaded all at once.
uni Metal Case & Refill Set - A Mechanical Pencil Lead Case You'll Love to Use
Full-metal construction for a premium feelThis full-metal case is made entirely of stainless steel parts, following the familiar slide mechanism of existing uni models. A built-in spring supports smooth sliding and offers a pleasant tactile experience when opening and closing. *Note: The case has a slight cushion-like feel due to the internal spring. Gently press the circular indentation and slide vertically to open. Using excessive force may cause metal friction or deformation, resulting in roughness or instability during operation.
Refined minimalist designWith its square shape and iconic circular indentation on the front, the case builds on the uni design concept while stripping away unnecessary elements for a cleaner, more minimal look. The raw metal texture adds a stylish finish that blends functionality with elegance.
Reusable and designed to be cherishedOnce the included leads are used up, you can refill the case with the supplied uni refill pack. This allows you to continue using the product as a favorite, sustainable tool. *Note: Due to the pressure of the internal spring, a slight gap may appear between the cover and the lead compartment when opened. Be sure to insert leads directly into the compartment when refilling.
uni Refill Pack - Compact, Sustainable, and Easy to Use
Easy refilling directly from the packageJust peel off the paper seals one by one to take out the leads directly from the refill pack and load them into the main case. This easy process allows you to reuse the metal case again and again without waste.
Eco-friendly cardboard packagingThe leads are stored in a slim 4mm-thick cardboard sheet, designed to highlight the natural texture of the material. The sealing stickers are also made of paper, so the entire pack can be disposed of as recyclable paper waste. This product is not only refillable but also environmentally conscious in its materials.
Large capacity - Equivalent to four standard lead casesPerfect for heavy lead users, this pack contains enough for approximately four refills. Ideal for those who prefer bulk purchasing, it ensures you always have backup on hand so you can focus on your studies without running out. *Please refill one case at a time. The entire contents (1 to 4 refills) cannot be loaded all at once.
uni Metal Case & Refill Set - A Mechanical Pencil Lead Case You'll Love to Use
Full-metal construction for a premium feelThis full-metal case is made entirely of stainless steel parts, following the familiar slide mechanism of existing uni models. A built-in spring supports smooth sliding and offers a pleasant tactile experience when opening and closing. *Note: The case has a slight cushion-like feel due to the internal spring. Gently press the circular indentation and slide vertically to open. Using excessive force may cause metal friction or deformation, resulting in roughness or instability during operation.
Refined minimalist designWith its square shape and iconic circular indentation on the front, the case builds on the uni design concept while stripping away unnecessary elements for a cleaner, more minimal look. The raw metal texture adds a stylish finish that blends functionality with elegance.
Reusable and designed to be cherishedOnce the included leads are used up, you can refill the case with the supplied uni refill pack. This allows you to continue using the product as a favorite, sustainable tool. *Note: Due to the pressure of the internal spring, a slight gap may appear between the cover and the lead compartment when opened. Be sure to insert leads directly into the compartment when refilling.
uni Refill Pack - Compact, Sustainable, and Easy to Use
Easy refilling directly from the packageJust peel off the paper seals one by one to take out the leads directly from the refill pack and load them into the main case. This easy process allows you to reuse the metal case again and again without waste.
Eco-friendly cardboard packagingThe leads are stored in a slim 4mm-thick cardboard sheet, designed to highlight the natural texture of the material. The sealing stickers are also made of paper, so the entire pack can be disposed of as recyclable paper waste. This product is not only refillable but also environmentally conscious in its materials.
Large capacity - Equivalent to four standard lead casesPerfect for heavy lead users, this pack contains enough for approximately four refills. Ideal for those who prefer bulk purchasing, it ensures you always have backup on hand so you can focus on your studies without running out. *Please refill one case at a time. The entire contents (1 to 4 refills) cannot be loaded all at once.
Stylish package design!
Choose between single lead dispensing or bulk dispensing to match your usage scene!
Features a satisfying click mechanism that prevents lead spills caused by forgetting to close the cap.
High-performance mechanical pencil lead that's both smooth and strong.
Available in three HB options to suit your preference: Hard HB / Standard HB / Dark HB.
MONO Graph MG by Tombow is a high-performance mechanical pencil lead designed for an exceptionally smooth writing experience.
No.1 in Smoothness:
The writing resistance of MONO Graph MG is the lowest among competing products, proving it to be the smoothest lead available.
Double Guide Case:
With a simple slide of the cap, you can choose between:
Multi-Feed: Great for refilling multiple leads at once or returning extras.
Single-Feed: Ideal for refilling just one lead at a time.
A high-performance mechanical pencil lead that delivers smooth writing, strong break resistance, and bold lines all in one.
Designed to coordinate perfectly with the "Monograph" series of mechanical pencils.
Double-guide case allows you to choose between dispensing one lead at a time or multiple leads at once, depending on the situation.
Features a satisfying click mechanism that helps prevent lead spills caused by leaving the cap open.
