100% brand new and high quality Features:This bicycle tail light can keep you visible not only at night but also at daytime. USB rechargeable light, built in 500mAh rechargeable lithium battery, long service life.High water resistant rate. Protected against splashing water from any angle when cycling.Three different lighting modes depending on your preference: low bright, middle bright and high bright.The silicone fix strap is designed to tightly fit around many size seat posts, handlebars To keep lights secure and firm. Silicone mount straps can be easily loosen and fasten, and no tools are required.This bike light set is versatile enough for cycling, hiking, camping, or any outdoor activity.This is great for cycling at night or in places of low visibility and for safety concern. When using the tail light, if the orange indicator light flashes, it means the light need to be recharged.When charging the tail light, if the orange indicator light stops flash, it means charge finished. Specification:Product: Bie Tail LighrMaterial: Plastic, SiliconeOptional Light Color: Red+Blue Flashing, White Light Only, Red Light OnlyPower: USB RechargeableBattery: Built-in 3.7V 500MAH Lithium BatterySize: app.10cmx1.95cmx1.8cm/3.94inx0.77inx0.71inQuantity: 1 Pc Note:No retail package.Transition: 1cm=10mm=0.39inchPlease allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank youBike Tail Light only, other accessories in the picture are not included. Package includes:1 x Bike Tail Light