DescriptionFeatures:Brand new and high quality.Easy and convenient to useMove-controlled LED sensor， automatically ON/OFFOnly suitable for American， British Air Nozzle adapterMulti Red/Blue English letters and automatically changePower supply: 3 x AG10 battery (included)LED Color: Red， BlueLength: 7.8cm/3.07"(Approx.)Material: ABS， Alloy zinc valve adapterPackage Contents:1 x Bicycle 7 Led light