This pen is for me a better equivalent to Bamboo it just habit that comes very quickly over the black part or depositing his fingers is a kind of rough rubber which keeps the finger at such points even by forcing the fingers will not slip in the long is used almost as a fountain pen must after a certain time replace the mine currently Amazon sell them in sets of three of the same brand Pen:; qid = 1425011868 & sr = 8-6 & keywords = Adonit jot + Pro +