Features: Lightweight & Durable Aluminum alloy heated treated for a strong and lightweight design. it is only 45 weights each. make each edge smoothly, does not hurt the bottle and your hand. simple to wipe and clean. Quick & Simple To Install Mount on your bike frame at once. Use a simple hex wrench (included) to fix water bottle cages in bicycle threaded holes on frame. oval mounting holes allow fine-tuning of position on frame. 2 stainless steel bolts included. Stay Hydrated On Your Ride Water bottle holder for bicycle has a secure hold. Quick &Simple access to your bike water bottle when you need it. Great for Road, Mountain, Hybrid, Tour-ing & Electric Bikes. Fits Your Water Bottles This Water Bottle Holder Cages fits most of standard & over sized bike water bottles. Flexible and durable material, ideal for most of sports bottle. The cage can be bent slightly to open or close to relieve tension on the bottle. Colorful Perfect Your Bike: Premium vacuum electroplating process, makes each bottle holder metal texture, more attractive. Exquisite Finish To Fit Your Bike - Powder coated and high tumble polished to your shiny bike paint. Package Includes: 2 Pcs Bicycle Water Bottle Cage Specifications: Brand: SWTXO Product Name: Aluminum Bottle Cage Material: 6061T6 aluminum Size: 145 x 68 x 81mm Weight: About 42g Screw spacing: 74mm Bottle diameter within 70mm Color: Black Red / Rose Golden / Blue Golden / Green Blue / Rainbow Craft: T6 treatment, anodizing, lightweight design Application: Bottle diameter within 75mm Mountain bike, Road bike, Folding bike, etc 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!