Features: Method two suitable installation methods: suitable for bottles of various diameters and compatible w/ various small diameter beverage bottles. High quality cage: swtxo bicycle water bottle cage is made of heat treated material and premium aluminum alloy, with a smooth surface, oxidation-proof, durable, tough and lightweight, and non-deformation, which it's the perfect cycling gear for your outdoor riding adventures. Exquisite finish: the surface is greatly smooth and will not scratch your bottle. Secure & sturdy: The bike's water bottle holder has arms that wrap around the bottle ensure it stays in place firmly and securely if you're out riding fast on rough roads or trails. Wide Applications: The exquisite bicycle water bottle holder can place most bottles, very excellent for installation on bicycle, mountain bike, road bike, etc. Package Includes: 1 Pcs Water bottle holder . Specifications: Item Name: Aluminum Alloy Bottle Cage Brand Name: SWTXO Material: Aluminum Alloy Color: Blue; black; Red; green; Gray; titanium; rainbow Weight: about 35g Size: about 153mmx75mm Suitable for: mountian bike, road bike, folding bike note: Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!