LP0073B General Specs Color of Laser Green Model LT-5 Material Copper Tube Diameter 2.5 cm Color of Laser Green Output Power 1mw Wavelength 532nm Working Voltage DC3.0V Battery  2 x AAA （Included） Package Details Weight: 211.86 g Size: 17.5*6.5*3 cm Package Includes * Laser Pointer