Dunlop rear light A suitable rear light that can be clamped anywhere. The LED lamp works on two button cell batteries, which are included. The rear light has three functions with an on/off button and is waterproof. The rear light can be attached using the supplied holder. The holder is suitable for a diameter of 22 to 30 mm. Specifications: Color: black Material: plastic Weight: 70 grams Dimensions: 5.5 x 5.5 x 4 cm (L x W x H) Batteries: 2 CR2032 batteries Contents: 1 Rear light 1 Frame holder 2 CR2032 batteries