Pentel Side FX Mechanical Pencil, 0.7mm, Blue Barrel, Box of 12 (PD257C) Side advance automatic pencil with "dial-up" eraser 0.7mm lead produces crisp, fine lines Large barrel with no-slip, latex-free grip and extra-long eraser Refillable with Hi-Polymer Lead and E10 jumbo refill eraser Box includes 12 Pencils