Pentel Super Hi-Polymer Lead Refill, 0.7mm Medium, HB, 360 Pieces of Lead (C27-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 0.7mm mechanical pencils Lead packaged in tubes for easy handling