RUSTU RU-3 5mW Blue Purple Laser Point Pen - Black + Silver (2 x AAA)
Color Black + Silver Brand RUSTU Model RU-3 Quantity 1 Piece Material Aluminum + copper Laser Power 5 mW Wave Length 405 cm Laser Color OthersBlue purple light Excitation Mode Optical Pump Working mode Continuous laser Working Voltage 2.4-3 V Battery 2 x AAA battery included Packing List 1 x Laser pen 2 x AAA batteries 1 x English user manual