Green Laser Pointer,Laser Pointer Pen,Laser Pointer,Green Laser Pointer Pen Material: Copper Different modes for choice Green Laser Pointer,Green Laser Pointer Pen, Laser Pen,Laser Pointer (KA-0300) Size: 143 x 13 mm Material: Copper Shape: Pen Color: White chromium ... output, service life more than 5000h Battery: 2"AAA" Laser type: Visible laser Diode Wavelength: 532nm Power:5mw,10mw,20mw,30mw, 50mw ...