... button Pen size: 10(dia.)*125.5mm 4-in-1 Laser Pointer Pen, With Torch And Touch Button Features:1. Pen size ... : 10*125.5mm2. Main-functions:Pen+LED torch+laser pointer+touch head3. Color of pen: black, silver4. Battery: 3 button ... , we are ready to cooperate with youJ 4-in-1 Laser Pointer Pen,Touch Screen Pen, Led Light Pen