Tombow MONO Graph Mechanical Pencil Lead Refill Pack 0.5mm BDragonfly "Sharp Lead Monograph MG" High performance sharp lead for smooth writing The writing resistance value indicates that the sharp lead monograph MG is the lowest and smooth compared to other products. Double Guide Case: By moving the cap part left and right, you can choose between "bulk out" and "single out". [Combination]: A return port when you want to refill a lot at once, or take it out too much. 1 dispense: Perfect for when you want to