Pentel P205A 0.5mm Sharp Mechanical Pencil, Black Barrel. Sharp Mechanical Pencil features a 4mm fixed tip design for template work and technical drawings. Mechanical pencil offers a concealed eraser, top lead advance and removable clip. Equivalent to a No. 2 pencil, this pencil lead scans on standardized tests. Mechanical pencil is refillable with 0.5mm Pentel Super Hi-Polymer Lead P2AC25HB and P2AZ21N refill eraser.