product Use high-strength aviation aluminum alloyThe product can light firewood, and the light distance can be up to 14,900 meters for explanation and pointing.The product is light and easy to carry, suitable for all agesLaser flashlight material: high-strength aviation aluminum alloyScope of application: when teachers are in class, when observing the starry sky at night (referring to the stars), laser magic performances, and lighting matches outdoors.Product specifications: 16CM*2.4CMBattery: 18650 rechargeable batteryVisibility of range: 1000-1500 metersmatter:1. When in use, the laser beam must not be directed at the eyes of people and animals2. Please take out the battery when not in use and put it out of the reach of children3. If you find that the brightness of the laser beam is severely reduced, please charge or replace the battery.