Amazon.com : Pentel Eraser and Lead Refill Pack for Mechanical Pencils - Super Hi-polymer Lead Refills Value Pack, 0.5mm 6 Pack of 30 Pieces – Pack of White Eraser Refills 3 Packs
Paper Mate Clearpoint Mechanical Pencils, HB #2 Lead (0.5mm), with Lead Refills and 2 Erasers - Walmart.com
Pentel Mechanical Pencil Lead Refills - John Neal Books
Pentel Super Hi-polymer Mechanical Pencil Lead Refills, 0.7mm, HB, 180 Pieces of Lead - Walmart.com