Description: Premium Material: The bike bottle cage adapter is made of aluminum alloy, durable, strong, and more wear resistant. Reasonable structure, lightweight and durable. Stable Design: The bicycle bottle cage adapter fits the frame with stable installation. Specially designed for bicycle bottle cages, used to fix the bottle cage and adjust the best position of the bottle cage. Features: The bike bottle holder adapter is compact and lightweight, providing you a lightweight riding, and does not increase the burden on riding. Easy to Use: The package comes with free installation tools, very easy to use. Matches bike bottle cages. Cycle Accessories: Good accessories for riding, makes cycle fun. Great accessory for folding bikes. Specification: Material: Aluminum Alloy Size Chart: 13.2cmx1.8cm/5.20inchx0.71inch Package Includes: 1 Bike Bottle Cage Adapter 2 M5-0.8x8mm Bracket Fixing Bolts 2 M5-0.8x12mm Bracket Fixing Bolts 2 M5-0.8x6mm Bracket Fixing Bolts 1 Bicycle Repair Wrench Note: Please allow slightly errors due to manual measurement and different monitors.