Toshiba PA3316U-3ETC Digital Tablet PC Pen II Electronic tablet pen that looks and feels like a real pen Side switch activates the 2nd mouse New pocket clip design to prevent loss Includes an eraser end Designed to work with Toshiba Satellite R10, R15, R20, R25; Portege M200, M205, M400, M405, M700, M750, M780; Tecra M4 and M7 series Tablet PCs