Features: Material: This riding water bottle cage water cup holder made of quality aluminum alloy material, durable and lightweight, the smooth brim will not scratch your bottle. Universal Bottle Holder: The Bike Bottle Holder fit most standard & oversized bike water bottles, and ensures a full bottle stay firmly in place when you are riding. Strong Bottle Holder: The bottle holder has arm that wrap around the bottle for an secure and firm hold so you do not have to worry about it falling out during your ride. Quick and Easy to Install: Including necessary mounting fitting, easy to install. The screws are standard size for water bottle mounts to most of bikes with mount holes. Stay Hydrations on Ride: Quick and easy access-to your bicycles water bottle when you need it. Great for road, mountain, hybrids, tourism and also electric bicycles. Specifications: Material: Aluminum Alloy Color: Black/Silver/Red/Blue Package Weight: approx.128g Applicable: Bottle Size 7.5-9.5cm Package Includes: 2Pcs Bike Water Bottle Holder note: Please allow 1-2cm error due to manual measurement. Please 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. Thanks!