LP0342B Features Torch shaped laser pointer Comes with a strap Compact design， convenient to carry Can be used for presentation， teaching indicator， etc. General Specs Model TQP-H50 Type Laser pointer   Material Aluminum alloy Laser Color Purple Max. Output Power 5 mw Wavelength  405 nm Power Supply 1 x 16340 Battery (not included)  Irradiated Range 1000 meters Switch Location  Tail-cap Dimension 11.5 x 2 x 2 cm Warning Laser is harmful to human's eyes， so please do not direct to the human eyes. Please keep it away from children's store in order to avoid an accident. Prohibit using the product under 16 ages; User is responsible for any improper using way Package Details Weight: 52.43 g Size: 17.00*2.5*2.5 cm Package Includes * Laser Pointer