200281 5mW 405nm Blue-Violet Laser Pointer Pen - Black (2 x AAA)
Model 200281 Quantity 1 Color Black Material Aluminum alloy Laser color Blue-Violet Laser Power 5 mW Wave Length 405 nm Working Voltage 2.4~3 V Battery Configuration 2 x AAA (not included) Functions Best choice for teachers professors doctors and so on. Other Feature Continuous output and working time of over 5000 hours; Output Type: Light beam only Packing List 1 x Laser pointer