Feature●☆Feature☆ Brand new, standard refill with high friction during tablet operation, naturally smooth●☆Fitment☆ for Wacom Pro PTH-860 PTH-660 and Cintiq DTH1620 1320.●☆Quality☆ is guaranteed and worth to order, if you have any questions please email us.●☆Disassembly☆ When replacing the nibs, just use the removal ring ,clamp the refill and take out, it is easy installation and disassembly●☆Package☆ Including: pack of 5 Pen Nibs Black.Description Pack of 5 replacement pen nibs black for Wacom Pro PTH-860 PTH-660 and Cintiq DTH1620 1320.