Laser pointers are perfect for: presentation animal toys sparkle in the night skyThe beam can also be seen in the dark thanks to the super powerful laser(preferably a green laser/some blue lasers too) Two batteries not included (2x AAA)[product name]: single point red light green light blue purple light 5mwProduct Specifications: 14155mm[product material]: copper + aluminum[Battery used]: 2*AAA7 dry battery[product appearance]: pen shape[Appearance color]: blackLaser Type: Visible laser Diode[Specification parameters]: fixed focus, point light spot, continuous output, continuous service life> 5000 hours[Output wavelength]: violet light 405nm, green light 532nm, red light 650nm[Output power]: 5MW[Range range]: 50-5000 metersSpot diameter: Minimum spot diameter 1.0mm; light spot at 15m