Alvin - Hercules Graphite Pencil - Lead Holder Set - 5.6mm - Hercules Graphic Pencil Lead Holders hold large 5.6mm lead, great for generating broad strokes, ideal for covering large areas. Hercules Graphite Lead Holders are perfect for life drawing and sketching. No-roll design is easy to hold and keeps hands clean. Set includes one HB, 2B, and 6B lead. Alvin is one of the primary sources for drafting supplies and drawing equipment in the country. Creative Coldsnow is a pround retailer of Alvin graphic arts, drafting and fine arts products.