Reelight City Supreme Reepower Constant bicycle lighting With this super handy City Supreme Reepower Constant bicycle lighting from Reelight you can always go safely and illuminated. The front and rear bicycle lights are very easy to mount and charge automatically while cycling by means of Eddy Currents via the aluminum rim. The lighting continues to flash for 2 minutes when stationary. Suitable for bicycles with roller or disc brakes. Please note that this lighting set can only be used with aluminum rims. Specifications: Color: red, white, black Gender: unisex Material: steel, plastic Mounting: on wheel axle Contents: 1 Front lamp including mounting bracket 1 Rear lamp including mounting bracket