COMPATIBLE - It is ONLY compatible with Surface Pro 2017 Pen (Model 1776) and Surface Pro 4 Pen. NOTE: Pens are not included. HIGH SENSITIVITY - The pen nib gives you accurate writing/drawing experience and has a great responsiveness and sensitivity. ORIGINAL QUALITY - The quality of this pen nib is the same as the original Pen Tip that compatible with Surface. NO SCRAPES - This fine rubber tip is slides nicely, smooth and no scrapes, greatly reduced the friction on the screen. EASY INSTALLATION - 6 HB tips included, it is effortless to install this quality pen tips without any tools, just replace or remove by your hand. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia