I used the trackball mouse about 5 times, but I couldn't get used to it, so I switched to a trackpad. It's in a clean condition with no noticeable scratches or stains. Unlike regular mice, you don't need to move your wrist, so you can operate it even in a small space. ※ A successor model (USB-C model) has been released, but this one is the USB charging type. 【Please Read】 Returns are not accepted due to the recent trend of item swapping. Please note that the charging cable is not included.