Compatible with contact pen stylus for Surface Pro 3 and the active pen sold. High-quality, low-friction tip provides art-like precision and control. Easy to exchange tip for Surface Pro 3 Pen. Almost every item has been tested to ensure 100% compatibility with your Surface Pro 3 pen. Product Features: - Easy to replace - High precision - Scratch-resistant - Conductive plastic carbon + polyacetal material - Greatly reduces friction on the screen and prevents long-term screen scraping Simple replacement: Hold the replaced pen tip, pull it out easily, insert the new tip, and use. Color: Black Material: ABS Package Contents: 12 x Pen Tip Note: Only the above package content is included; other products are not included. Light reflection and different displays may cause the color of the item in the picture to vary slightly from the real thing. Measurement allowance error is +/- 1-3 cm.