Wacom Bamboo Stylus Replacement Nib Bundle: 5 Standard Black & 5 Standard White ACK20101K/ACK20101W 5 Black Replacement Nibs for your Digital Tablet 5 White Replacement Nibs for your Digital Tablet Compatible with BAMBOO and INTUOS4 SERIES (& POSSIBLY OTHERS) Including but not limited to CTL460, CTH460, CTH461, CTH661, CTL471, CTH470, CTH670 75321899352 ack20101k 75318993618 ack20101w