Features:1Light Weight: The bike holder adapter is compact and lightweight, providing you a light weight riding, which only weighs about 13G and does not increase the burden on riding.2Sturdy Material: The aluminum alloy is durable and strong, light weight and more wear-resistant.3Rust Resistance: The one-piece aluminum alloy is not easy to rust and can withstand the sun and rain.4Stable Design: This bicycle bottle cage adapter fits the frame with stable installation.5Easy to Use: The package comes with free installation tools, very easy to use.Notice:Actual color may be slightly different from the image due to different monitor and light effectPlease allow 1-3mm deviation due to manual measurement Description:Size 107mm*12mm*8mm Package List:1 set x Bicycle Bottle Holder