LP0340G Features Purple laser pointer  Suitable for aiming， positioning A variety of patterns for your choice Convenient and practical to use General Specs Type Laser pointer   Shell Material  Copper Wavelength 405 nm Laser Color Purple Power 5 mw Voltage  3.0 V Battery 2 x AAA (not included) Length 16.5 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: 147.66 g Size: 18*6*2.5 cm Package Includes 1 * Laser Pointer 5 * Heads 1 * Case