Thank you for viewing! This is a listing for four packs of Uni Nano Dia 0.4mm 2B mechanical pencil lead. As the world's first mechanical pencil lead to incorporate "nano-diamonds," it gained popularity for its improved strength and smoothness compared to previous products. While 0.4mm lead is a special lead diameter, there are mechanical pencils like the Pentel GraphGear 500 0.4mm for drafting, and I believe there are people who use them. How about it for those who often use 0.4mm mechanical pencils? This 0.4mm 2B lead is also no longer listed in the current UNI mechanical pencil lead catalog, and unfortunately, it is no longer being sold. ☆Product Details Nano Dia 0.4mm Black Lead 2B (Orange Case) Contents: 30 leads per pack Product Number: Uni 0.4-202D 2B JAN Code: 4902778030561 Retail Price: 220 yen (tax included) / per pack Shipped by: Mitsubishi Pencil Co., Ltd. ◆Discontinued in December 2021 ★Product Condition Brand new, unopened. The label on the back is intact and in good condition. Shipping will be done using a Yu-Packet Post Mini envelope as it is a small item. I will wrap it in bubble wrap to prevent movement within the envelope and will carefully package it. Thank you very much. (Listed on 2025/11/29) #MechanicalPencilLead #Uni #UNI Type...Mechanical Pencil Lead Lead/Darkness...2B