Tombow Mono Graph Lead - 0.3 mm - HB - Mono Color Case | JetPens
Super Hi-Polymer® Lead, 0.3mm, 12 Pieces — Pentel of America, Ltd.
Amazon.com : June Gold 820 Pieces, 0.3 mm 2B Lead Refills, 205 Pieces Per Tube, Extra Fine Thickness, Break Resistant Lead/Graphite (Pack of 4 Dispensers) : Office Products