Compatible with Contact pen stylus for Surface Pro 3 and the active pen sold. High quality the low-friction tip provides you with art-like precision and control. Easy to exchange tip for contact Pen of Sur-face Pro 3. Almost Every item has tested to it is 100% suit for your Surface Pro 3 pen. Product Feature: Easy to replace, High Precision, Scratch-Resistant Conductive Plastic Carbon + Polyacetal Material Greatly reduced the friction on the screen, as well as long-use of screen scrape. Simply hold the replaced pen tip, pull it out easily, insert the new tip into and use. Colour: Black Material: ABS Package Contents: 12 * Pen Tip 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.