Jolt Mechanical Pencil offers revolutionary Sliding Sleeve Technology that automatically advances lead for uninterrupted use. Click pencil top to advance tip. Then shake twice to expose lead. Contoured barrel provides added comfort for extended periods of time. Soft, latex-free grip provides added comfort and control. Pencil is refillable with Pentel Super Hi-Polymer lead and PDE-1 erasers. Pencil is made with a high percentage of post-consumer recycled material, excluding consumable content and refills.