Features: 1. Wide Compatibility: Suitable for Pro4/5/6/7 Pen. Note: Pen is not included. 2. Highly Sensitivity: The pen tip can provide you with accurate writing/drawing experience, and excellent responsiveness and sensitivity. 3. Original Quality: The quality of this nib is the same as original nib. 4. No scratches: The fine rubber nib slides smooth without scratches, which greatly reduces the frictions on the screen. 5. Easy to Install: With 1 nib, can easily install this highly quality nib without any tool, just replace remove it by hand. Specifications: Material: rubber Size: about 1.50cm/0.59in Length Colour: black Applicable Model: For Pro4、5,For New Pro2017,For Book etc Quantity: 1pcs Package Includes: 1PCS Refill note: Transition: 1cm=10mm=0.39inch Please allow slightly 0-1cm difference due to manual measurement. Color can appear different depending on light and how listing is viewed. Thanks for your understanding and attention