Flashlight:Product material: Metal(Aluminum)+Electronic components Colors: blackBright degree: range 100M-200MBulb's lifetime: 100，000hoursBattery: 3*AAA battery(Not include)On-off Style: touch-toneHolder:Model: U styleMaterial: refined TPR material， flexible plasticReliable quality， ExpandableFit flashlight size: Diameter from 22-29mmFit Bicycles stents: 25-31mmColor: BlackPackage Included: 1 x Flashlight1 x Bicycle Flashlight Holder/Clip1 x Plastic packaging Box