Features 1、Adjust Height: Bike bottle holder mount adapter height can be easily adjusted according to your needs, suitable for most mountain and road bikes. 2、For 2 Bottle Cages: Bottle holder mount adapter can be used for dual bottle cages, which can provide additional kettle capacity for long distance riding needs. 3、For Outdoor Use: Bike bottle holder mount adapter is suitable for outdoor sports enthusiasts, which can meet their needs for water and drinks. 4、Easy Install: Road bicycle saddle rail mount is easy to install under the bicycle saddle, does not affect the riding comfort, bring you much convenient. 5、Aluminum Alloy: Bike saddle rail mount made of aluminum alloy material, firm and sturdy, which can ensures that the kettle is securely fixed without fear of falling. Item Type: Bike Bottle Holder Mount Adapter Material: Aluminum Alloy Size: Approx. 57 x 96 x 110mm / 2.24 x 3.78 x 4.33in Package List 1 x Bike Bottle Holder Mount Adapter