Experience the luxury of a MONO Graph Mechanical Pencil! This pencil writes smoothly with 0.5mm graphite lead. You can also extend the lead by shaking it! Thanks to an innovative shake lock, you'll be ready to write with no fear of accidental extension. Plus, the MONO Eraser makes erasing a breeze--so you can always keep your writing looking pristine. You'll be ready to scribble your heart out!