Features: This little device fits on most taps and lights up a set of LED when you turn on the tap. 7 color are mixed displayed automatically when water flow. ABS chroming material, excellent corrosion resistance, durable. Transforming the stream of water into a beautiful waterfall of light. Offer you a delight & wonderful experience. Ideal for bathroom or kitchen to make it fantastic. Case material:ABS. LED emitting color: Green, Red & Blue. Size:3.5cm x 2.4cm (1.38inch x 0.94inch x 0.94inch). no need battery no need wire linePackage Included: 1 x LED Water Faucet Tap