Pentel Twist-Erase GT (0.5mm) Mechanical Pencil, Barrel Color: Black, Pack of 4 (QE205BP4A) Unique, extra soft ribbed grip for less writing fatigue during extended writing sessions Frequent mistakes are no match for the larger than ordinary and long lasting twist-up eraser No smudges, no paper tears and no ghosts with the twist-up Eraser Pre-loaded with Pentel Super Hi-Polymer HB lead; never needs sharpening, is super strong and produces a clear dark line 4 - 0.5mm lead Mechanical Pencils