Rechargeable. transparent plastic pen. Protected white eraser. Excellent prehension in hand. Ergonomic rubber ring. Supplied with 3 HB cartridges. 2 models. 1) Cartridge 0,5: Black pen or 6 colors (black, blue, red, pink, sky-blue, pastel green). 2) Cartridge 0,7: black or blue pen. drawing and accessories.