[USB Charger and Bank]The bike handlebar extender with rechargeable feature ,It can be charged by USB port of computer or other supply. You can it to charge your phone,' worry your phone will off outdoors . the charging spot remains closed on rainy days. [Sturdy and Durable]The are designed and sturdy, made of light aluminum alloy which is durable and resistant to corrosion, rusting, or color fading.The screw buckle is durable. high quality screws, double protection. Equipped with wrench, easy to install and detach, and adjust. [Multifunctional Bicycle Extender]-The practical bike rack adds extra space to your bike, used to fix bike lights, speedometers, GPS devices, smart phone racks, etc. [Compatibility]The bike handlebar extender fit bikes, suitable for various handlebar sizes ranging from a diameter of 22 mm to 31.8 mm. Colour:black Material:Metal Package Contents: 1 x Bike Handlebar Extender 1 x USB Cable 2 x Battery Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.