This ultraviolet flashlight is made of 9 LEDs, with small power and volume, making it easy to carry; The sturdy aluminum alloy body makes it more durable. Ultraviolet flashlights can display pet urine, identify counterfeit currency, and display invisible ink on passports, cash, or other important documents. It is an important tool for law enforcement, postal inspections, customs, medical forensics, and scorpion hunting. It needs to be paired with 3 A+batteries, and the product itself does not come with batteries.The quantity of over 5000 pieces is based on sea freight