Ikzi Light rear light ER2F With this taillight from Ikzi Light you can cycle safely through traffic in the dark. The lamp is easy to attach using the supplied silicone strap. Specifications: Color: red Material: plastic, silicone Diameter: 4 cm Type of lighting: led Clamp diameter: 22.2 to 31.8 mm Works on one CR2032 button cell battery (included). Content: 1 Rear light with battery