Cycling Bicycle Bottle Cage Road Mountain Bike Aluminum Alloy Water Cup Holder Feature： 1.IDEAL FOR MOST STANDARD BOTTLES: Snugly fit bottle diameter around 3 inches , or 40 OZ. ( can be adjusted by bending ). 2.IMPROVED DESIGN FOR SAFER HOLD: By adding 2 smooth bolt on each side of the U shaped arm, the holder clasps the bottle more securely when cycling or dirt biking. 3.6061-T6 HEAT-TREATED ALUMINIUM ALLOY: 6mm thick profile, Sturdy metal, Ultra lightweight 68g. 4.EASY INSTALLATION: Simply mount the cage to the pre-drilled holes on bike frame with allen key. Mounting hole-center distance: 25 inches (64mm). 5.Comes with 2 packs of bicycle water bottle rack; 5 x allen head screws (M5x12mm), 5 x washers, 1x allen key for each bottle cage Color: Black,Blue,Red,Silver Package Included： 2 x Bicycle bottle cage 4 x Screws 1 x Wrench 😁 [Satisfaction First] - Customer satisfaction is our top priority. If you are not satisfied with any of our Kayannuo product, please contact us and rest assured that we will do our best to make it right. Please refer to the size chart images and product descriptions, as well as our customer feedback, to ensure an accurate fit. Feature： 1.IDEAL FOR MOST STANDARD BOTTLES: Snugly fit bottle diameter around 3 inches , or 40 OZ. ( can be adjusted by bending ). 2.IMPROVED DESIGN FOR SAFER HOLD: By adding 2 smooth bolt on each side of the U shaped arm, the holder clasps the bottle more securely when cycling or dirt biking. 3.6061-T6 HEAT-TREATED ALUMINIUM ALLOY: 6mm thick profile, Sturdy metal, Ultra lightweight 68g.