Product compatibility: these replacement digital pen nibs are designed for many digital models, and compatible with Bamboo Intuos , like CTL-471, CTL-671, CTL-472, CTL-672, CTL/CTH-480, CTL/CTH-680, CTL/CTH-490, CTL/CTH-690,TCTL-4100, CTL-4100WL, CTL-6100,TL-6100WL, PTH-451, PTH-651, PTH-851, -1301, DTH-1300, -2200, /DTH-2700; take a careful check your pen model buying Fine standard tip: this kind of standard fine tip is sensitive and flexible to use, providing you with a comfortable writing and painting experience, bringing more accurate information and giving you an original just like writing on paper accuracy: refill digital pen nib can keep your pen in precision, suitable for many pen models, which will give you a writing or painting experience without worrying about worn problem : the package includes 20 pieces of standard replacement digital pen nibs, which will you work smoothly; The can meet your , and simple use is convenient to replace yourself Easy to install: standard pen nibs are easy to install and only steps, you just need to use a small plier to a replacement nib, and then insert into the hole, easy to operate, performance, will you for a long time. Material: Plastic colour: black Package Contents: 20 x pen nibs Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.