Allnice Premium Ultra Light Anti Rust Aluminum Alloy Welded Bike Bicycle Cycling Handlebar Water Bottle Cage Holder Rack Bracket Bike Accessory MTB/Road/BMX (Blue) (Black) Lightweight and Durablethis Bike Water Bottle Cage Be made of high quality heat-treated aluminum alloy, extra strength and durability. Combined with low weight, 2.4oz (67.5g) each, ultra light. Product DimensionBottle diameter around 2.8" will fit perfectly. Max bottle diameter is 2.8"(70mm). Fit most standard sized water bottles. Easy InstallationSimply professional disign, makes it securely mounted. Use 2 screws to fasten cages in threaded screw holes on bike framePlease Note: Bike frame requires threaded holes for installation of cages, 2 screws included. Package included1Bike water bottle cage, 2 screws. GuaranteeWe stand behind our products 100% with a One Year Warranty. We do offer a 30-day money-back guarantee. Makes it easier to hydrate yourself while riding.