Material: Aluminum AlloyWith simple waterproof function， but can not be put into the waterFluorescent detectionCoumterfeit and banknotes distinguishingSwitch: End click switchInput voltage:0.8~2.8VPower supply:1*AA battery (not included)Size: app.9.4cm(Length)x2cm(body diameter)x2.5cm(head diameter)LED Color: PurpleBody color: BlackQuantity: 1 PcNote: 1.Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors， the picture may not reflect the actual color of the item. Thank you!Package includes:1 x UV Flashlight (with 2Pc O-ring)