Light Weight & Durable The water bottle cages are made of premium aluminum; and only weigh 1.3 ounces(37g), reducing the burden of riding. The water bottle holder is flexible and won't break easily with no welded portions. Easy Installation There are 4 standard-size screws that come with the package for bike water bottle cage mounting. The designed mounting hole allows for fine-tuning of position on the frame. An Allen wrench is provided for installation and you may need to cut through metal a bit to screw the bolts. It will be very tied eventually.PLEASE NOTE: bicycle frame requires threaded holes for installation of bottle cages. Adjustable Bottle Cage The bottle holder can be adjusted to fit bottles from 2.7” - 3” in diameter. The bottle cages can be bent open or ciosed to change the tension on the bottle. Fit most standard-sized water bottles. Universal Design The water bottle cage match any bikes, which can firmly hold the bottle on the bike. There is no need to worry about it falling during your ride. The smooth surfaces of the bottle holder will keep your bike secure. Bike Water Bottle Holder Bike Water Bottle Holder Bike Pedals Bike Pedals Bike Kickstand Bike Cover Add to Cart Add to Cart Add to Cart Buying Options Add to Cart Buying Options Customer Reviews 3.6 out of 5 stars 548 3.6 out of 5 stars 548 4.2 out of 5 stars 1,246 4.3 out of 5 stars 325 4.2 out of 5 stars 1,033 4.3 out of 5 stars 695 Price $7.86$7.86 $7.86$7.86 $9.86$9.86 — no data $7.86$7.86 — no data Meterial Aluminum Alloy Aluminum Alloy Aluminum Alloy Aluminum Alloy Aluminum Alloy Oxford Universal ✓ ✓ ✓ ✓ ✓ ✓ Waterproof ✓ ✓ ✓ ✓ ✓ ✓ Durable ✓ ✓ ✓ ✓ ✓ ✓ Color Black/Red/Blue/Silver/Navy Blue Black/Red/Blue/Silver/Navy Blue Black/Red/Blue/White Black/Red/Blue Black Silver