The Pentel energize-x Mechanical Pencil is the perfect companion to the EnerGel-X Roller gel pen. It features an attractive color-tinted barrel that comes pre-loaded with Pentel super Hi-Polymer HB lead. Hb lead is guaranteed to scan on standardized tests, never needs sharpening, is super strong and produces a clear dark line. The latex-free grip provides extended comfort and control when writing. The eraser includes a cap to keep it clean and can be refilled with Pentel eraser refill z3-1. It is available in 0.7mm lead sizes for a medium, dark line and is backed by pentel's limited lifetime warranty.