Including screws: Screws are the standard size of water bottles and are used to install on most bicycles with drilled holes. It is recommended to use washers for tight fixation.
Heat-treated aluminum alloy: high-quality materials and manufacturing processes, with super durability and light weight. Suitable for plastic water bottles. Note: The surface of the aluminum water bottle may be scratched.
Easy installation: Use a 4 mm hex wrench (included) to fix the cage in the screw hole on the frame. Please note-the bicycle frame requires threaded holes to install the cage.
Water bottle size: 25 ounces (about 737.1 milliliters) water bottle can fit snugly; the minimum bottle diameter is 2.75 inches (68.9 mm), and the maximum bottle diameter is 3 inches (76.2 mm). The arm of the bottle cage (adjustable) can wrap the bottle to ensure it is firmly fixed, don't worry about it falling during the ride
