Dresco Modern rear light with reflector This compact rear light produces a powerful and bright beam of light by means of the 15 COB LED lights. In addition to the normal mode, the lamp has a flashing function, so that you are extra visible. Easy to attach to the seat post or rear fork with the supplied adjustable (25.4 to 31.8 mm) rubber strap. Works on two supplied CR batteries. Specifications: Color: red, black Material: plastic Type of light: COB LED Power supply: batteries (2 x CR 2032) Mounting: seat post or rear fork (diameter from 25.4 to 31.8 mm) Contents: 1 Rear light 1 Mounting strap 2 Batteries