Features:100% brand new and high qualityThis is a inductive light. Light is on when the cup is filled with liquid (water， drink， alcohol etc...)Perfect Decoration accessory for your rooms， parties， clubs， bars， discos， etc.Romantic and Funny design.Light is off when on liquid's filled in.Cleaning with water.Specifications:Material: environmental protection plasticsCup color: TransparentLight color as picture shown: Red + blue + greenPowered by 2x AG batteries. (included)The batteries are replaceable!Size: 9 x 8.5 cm (Height x Diameter) 301-400mlPackage weight: 125gPackage includes:1 x plastic bar/home cup