1. For Surface series capacitance pen 2. Smart shortcut key design, smart keys and auxiliary functions make the operation convenient. The eraser button is used to and remove traces, and the right mouse button is used to quickly select contents to work efficiency. 3. Low power consumption design, can replace the battery at any time, and has a long endurance. 4. Advanced Materials: The body of this for pen is made of aluminum alloy, which is durable and suitable for daily use 5. No Driver and Bluetooth Required: This Surface stylus does not require a Bluetooth connection. Simply plug in the battery and you're to go. Name: stylus Pen Pressure sense level: 1024 Button: eraser, right click Battery: 1 alkaline battery Size: 142 x 10mm Usage: It can be used without pairing, and the battery is installed correctly Compatibility: for Surface 3/Pro3/Pro4/Por5/Surface Book/Laptop color:Black Material:Metal Package Contents: 1 x stylus Pen 1 x Pen tip extractor 1 x Spare nib 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.