E-Sharp mechanical pencils feature the Pentel Lead Maximizer so you can get more use than ever from each lead piece. Continuous lead-feed mechanism mechanically propels reserve lead into sleeve; saving time and lead. Super Hi-Polymer HB Lead never needs sharpening and is equivalent to a No. 2 pencil. Design includes a large ergonomic barrel and rubber grip for added comfort and control as well as a top click and eraser. Pencils are refillable with Pentel's Super Hi-Polymer Lead and PDE-1 large refill eraser.