Pack of 2 Water Bottle Cage Adjustable MTB Bike Water Bottle Holder Lightweight

1.FITS MOST STANDARD SIZED WATER BOTTLES: 26 OZ water bottle can fit snugly; max bottle diameter is 3"(762mm). The water bottle cage has arms that wrap around the bottle for a secure and firm hold so you don't have to worry about it falling out during your ride. 2.EASY INSTALLATION: Use a 3mm hex key (included) to fasten cages in screw holes on frame. PLEASE NOTE - bike frame requires threaded holes for installation of cages. 3.INCLUDED SCREW 4 Pack (M5x12mm) : The screws are standard size for water bottle mounts to most of bikes with DRILLED HOLES,Such as Sitable on road bike, mountain bikes, BMX, spin bike Etc.. 4.6061-T6 HEAT-TREATED ALUMINIUM ALLOY Surface hard oxidation treatment: High quality material and manufacturing process for extra strength and durability combined with low weight, about2 oz (60g) each. package includes 2 of the water bottle holders .