Bike Water Bottle Holder - Aluminum Alloy Lightweight Bicycle Bottle Cage With Clamp Bracket, Mountain/Road Bike Accessory Drink Cup Holder Mounted On Cycling Handlebar Or Bike Frame Black【Feature】：1.Maintains Black Surface More Durable And No Scratches To Your Water Bottles.2.The Screws Are Standard Size For Most Of Bikes With Drilled Holes.3.If It'S Not Workable For Your Bike, Please Use Your Old Screws Or Purchase Separately From Your Local Store.【Specifications】:1. Type: Bike Water Bottle Cage2. Material: Aluminum Alloy3. Net Weight: 1.3 Oz（37 G）4. Lightweight And Anti-Rust【Package Include】:1 X Bike Water Bottle Cage2 X Mounting Screws1 X Allen Wrench【Easy Installation】:Use A 4mm Hex Key To Fasten Cages In Screw Holes On The Frame.The Included Screws Are Standard Size For Water Bottle Cage Mounts.Please Note: Bicycle Frame Requires Threaded Holes For Installation Of Bottle Cages.