ASUS Z Stylus for ZenPad (Z580CA; Z300C/CG/CL; Z500M) NOTE:Only compatible with Zenpad Z580CA; Z300C/CG/CL; Z500M Exceptional performance and compatibility An elegant stylus with a natural handwriting feel Durable, accurate, and preciseExtremely long battery life. Refer user manual below. Works with top apps.Clip-on design with two programmable buttons