This mechanical pencil lead refill set uniformly blends nano-diamonds in between the graphite particles present in lead, which works to reduce friction between the particles. This results in a smooth and seamless writing application. The case itself comes in a 2-step slide to open design which allows the user to control the number of lead refills dispensed. Measures 0.5mm and comes in a black colour.

• Mechanical Pencil Lead
• 0.5mm/HB/Nano Diamond Infused
• 0.7x2x7.7cm (40pcs)
• Black