Features: Easy installation. Multi-colors to select. Multi-point support, more stable and sturdy-. Suitable for road, mountain, hybrid-, touring motorcycle and electric bicycle. Quality aluminum material, rustproof, corrosion-resistant, has long service life. Specifications: Material: Aluminum Alloy Size: Approx. 7.7x13.5cm/3.03x5.31in Inner Size: Approx. 6.4x6.7cm/2.52x2.64in Mounting Diameter: 18-32mm Color: Red/Gold/Orange/Blue/Green/Titanium- Color/Black Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Water Bottle Cage