Classic Cycle rearlight retro LED battery red with black casing Good looking design and best quality The Classic Cycle Retro is a rear fender with a hip vintage design and LED technology. perates on 4 LR 1130 batteries Equipped with a powerful LED, burn time approx 70 hours, Retro design Material: Plastic Width: 43 mm (~1,69 inches) Length: 100 mm (~3,94 inches) with CP base with red lense