Pentel Wow Mechanical Pencil, 0.5mm, Assorted Barrels, 10 + 2 Bonus Pencils (AL405BP10MF) 10 + 2 Free - 0.5 MM Mechanical Pencils Features sliding sleeve to prolong write-out, reduce lead breakage and protect your pocket. Unique triangular shape grip makes it easy to hold and keeps it from rolling off desks Distinctive design stands out in a crowd Pre-loaded with Pentel Super Hi-Polymer HB lead; never needs sharpening, is super strong and produces a clear dark line.