Description This product is detection lamp, made of premium plastic material,. It can be used for the identification of currency and detect checks. Suitable for professional and personal use. Features - Color: Purple. - Material: Plastic. - Size: 4.00X3.00X0.70cm/1.57X1.18X0.28 inch. - Power: 0.02W. - Battery: 2 x 3V button battery (75mAh). - Bulb: LED/10mm. - The counterfeit detector light is the simplest solution to instantly identify counterfeit bills, convenient to use and check the results in seconds. - Great as currency tool, detect jewelry, ID card, collection, and so on. - Practical tool in daily life, help you to detector true and counterfeit money, can be applied to many occasions, such as stores, small businesses, etc. - Easy to use: Batteries are installed, and the batteries can be if it out off power; Nice for your portable tool or for your friends gift. - Pocket sized: These keychain is in small size and light weight, which can be placed bag, wallets, pockets, etc., easy to use. The counterfeit detector light is the simplest solution to instantly identify counterfeit bills, convenient to use and check the results in seconds. Great as currency tool, detect jewelry, ID card, collection, and so on. Practical tool in daily life, help you to detector true and counterfeit money, can be applied to many occasions, such as stores, small businesses, etc. Easy to use: Batteries are installed, and the batteries can be if it out off power; Nice for your portable tool or for your friends gift. Pocket sized: These keychain is in small size and light weight, which can be placed bag, wallets, pockets, etc., easy to use.