Compatibility: Can be mounted on normal size (25.4mm) and up to oversize (31.8mm) handlebars. The double clip is attached to greatly improve riding safety. High quality material: The bicycle extension frame is made of high quality aluminum alloy material, which is more smooth, corrosion resistant and sustainable. Bicycle Handlebar Extension Size: 22.2mm * 200mm / 0.87 * 7.87in (D * L) Application: Fits your bicycle handlebar to add extra storage space for your bike lights, GPS or phone etc. Easy to install: The screw buckle is durable. Use high quality screws, double protection. Equipped with an Allen key, the bicycle handlebar extension bracket is easy to install, use and adjust. Package Includes: 1 x 20cm Aluminum Alloy Bicycle Handlebar Extension; 2 x Aluminum Alloy Bracket; 1x Allen key. (Please check your bike handlebar size before adding to cart.)