Feature●[PD1161 / PD1561 / PD156 Pro / PD2200 / S620 / M10KPRO / M106KPRO ONLY] - GAOMON power supply not required digital pen suitable for ArtPaint AP50 and AP32●Package: 20 X Nib 1 X Pen Pen Clip●How to replace the nib: Use the pen clip to remove the tip from the pen, then put the new nib into the stylusDescription