Pentel Classic Deluxe (12) Mechanical Pencils (S55) - .5mm, Silver (12 in Tray) Tray of 12 mechanical pencils which take 0.5mm leads which produce crisp medium lines of consistent density A distinguished looking mechanical pencil with a large, grooved finger-grip barrel Dark barrel with a brushed aluminum cap Pentel Super Hi-Polymer Lead never needs sharpening and is equivalent to a #2 pencil Refillable with Pentel Super Hi-Polymer Lead and Z2-1 refill eraser