Pentel Super Hi-Polymer Lead, 0.3mm, HB, Box of 12 Tubes (300-HB) #1 selling lead in the world Each tube of Pentel Super Hi-Polymer lead is made of 100% recycled plastic and part of the Pentel Recycology line of products Pentel Super Hi-Polymer HB lead is equivalent to a #2 pencil, guaranteed to scan on tests, resists breaking and never needs sharpening Ideal for all general writing applications such as notes, letters, etc Refill Fits all 0.3mm mechanical pencils