Wiwu Pencil Max Stylus Pen Material: Aluminum + POM nib Net weight: 12g Length: 165mm Diameter: 8mm Use time: 12 hours Charging time: 1.5 hours Connection mode: automatic connection Charging interface: Type-C With magnetic function, can replace the nib, (additional nib) 95% compatible with touch screen devices Compact and lightweight design, high pen tip sensitivity, easy to carry Easy to use: Turn on this active digital pen by simply touching the cap button, do not need to install bluetooth