11024 levels of pressure sensitivity. 2Two side buttons: Eraser and Right-click context. 3Lightweight, easy to control and operation. 4Fast reaction, just need you to slightly touch the screen. 5Compatible for Microsoft Surface 3 / for Surface Pro3 Pro4 / for Surface Book, for ASUS Transformer T3 series / for HP Spectre X360(2017).Tablet stylus for Microsoft Surface 3 /for Surface Pro3 Pro4 Pro5/ for Surface Book, for ASUS Transformer T3 series / for HP Spectre X360(2017). 1024 levels of pressure sensitivity, fast reaction, touch it, enjoy it Features: 1024 levels of pressure sensitivity. Two side buttons: Eraser and Right-click context. Lightweight, easy to control and operation. Fast reaction, just need you to slightly touch the screen. Compatible for Microsoft Surface 3 / for Surface Pro3 Pro4 / for Surface Book, for ASUS Transformer T3 series / for HP Spectre X360(2017).Specification: Item Type: Tablet Stylus Material: Plastic + Metal Color: Black, Silver (Optional) Item Size: approx. 14.2 * 1 * 1 cm / 5.6 * 0.4 * 0.4 in Package Weight: approx. 50 g/ 1.76 oz Compatible For:1. for Microsoft Surface3/Pro3/Pro4/Pro5/Surface Book/Laptop 2. for HP Envy 17-aexxx for HP Envy x360 15-bp0xx for HP Envy x360 15-bq0xx for HP Pavilion x360 11m-ad0xx for HP Pavilion x360 14m-ba0xx for HP Pavilion x360 15-br0xx for HP Spectre x2 12-c0xx for HP Spectre x360 13-ac0xx for HP Spectre x360 13-ae000 for HP Spectre x360 15-bl0xx 3. for DELL Inspiron 13 5378/7378 for DELL Inspiron 13 5378/7579 for ASUS Transformer 3 Pro(T303UA) for ASUS Transformer Pro(T304UA) for ASUS Transformer 3(T305CA) for ASUS ZenBook Flip S UX370UA 4. for Vaio Z Canvas for Vaio Z flip for VAIO Duo 13 for VAIO Duo 11 Eve V Package list: 1 * Tablet Stylus 1 * AAAA Battery (built-in) 1 * Replaceable Pen Tip 1 * Ring