Pentel PENC505HB Pencil Refill

Pentel Super Hi-Polymer Leads - 0.5 mmFine Point - HB - Black - 12 / Tube; Super Hi-Polymer Leads produce crisp lines of consistent darkness, smoothness and density in 0.5mm mechanical pencils. Each super-strong lead writes as far as an entire wooden pencil and produces a dark line. A 12-piece tube is equivalent to 12 wooden pencils. HB lead is equivalent to a No. 2 pencil in darkness and guaranteed to scan on standardized tests.;