Compatibility - Compatible with for HP EliteBook x360 1030 G3,for HP EliteBook x360 1030 G4,for HP EliteBook x360 1040 G5,for HP EliteBook x360 1040 G6; for HP Elite x2 1013 G3; for HP Elite x2 G4; for HP ZBook Studio x360 G5.Warm Tips: software programming and the digital proximity alert are supported on these products.   4096 Levels of Pressure Sensitivity - The rechargeable active pen has an ultra-sensitive pen-point with 4096 pressure levels that natural onscreen note-taking, drawing, and app navigation. And it’s easier than ever to keep track of, with a built-in magnetic attach capability.  Easy to Use - Palm Rejection and Tilt operation function allow you to rest your hand naturally on the screen while writing. Once your device is paired and in range, it detects the pen and cues you where to place it onscreen. Erase, highlight, and click on your content with the two convenient side buttons. Two Built-in Side Buttons-Right-click and Erase. Take the Pressure off Digital Inking - Reduce the force required to use your pen when writing, drawing onscreen or working with your touch applications with improved starting and inking pressure vs. the previous generation. Color : Black Material : Aluminum Compatible Devices: for Hp Elitebook X360 G3, for Hp Elitebook X360 G6, for Hp Elitebook X360 G7, for Hp Elitebook X360 G4, for Hp Elitebook X360 G8 for Hp Elitebook X360 G3, for Hp Elitebook X360 G6, for Hp Elitebook X360 G7,for Hp Elitebook X360 G4, for Hp Elitebook X360 G8