COMPATIBLE - It is ONLY compatible with Surface Pro 4/5/6/7 Pen. NOTE: Pens are not included. HIGH SENSITIVITY - The pen nib gives you precise writing/drawing experience and has high responsiveness and sensitivity. ORIGINAL QUALITY - The quality of this pen nib is the same as the original pen nib compatible with Surface.NO SCRAPES - This thin rubber nib glides well, smooth and without scratches, greatly reduce the friction on the screen. EASY INSTALLATION - 3 HB tips included, easy to install these quality pen tips without any tools, just replace or remove by your hand. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!