Description Features: Double screws fixed, for ideal for most bicycle racks Easy to install, more stable embracing frame body The kettle rack is made of premium aluminum alloy and then colored by vacuum . UV plating. The whole water bottle is clear and dazzling. Contact us if you have questions. Specifications: Brand: PROMEND Material: aluminum alloy Model: SHJ-25218 Process: vacuum plating Color: 7 colors available Size: 150 x75mm Application: all kinds of bicycle water bottle cages 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! Package includes: 1 Pcs Bicycle Water Bottle Cage.