DURABLE ALUMINUM ALLOY: Made from aluminum alloy, the most suitable material for bike bottle holders, solid and durable.
SCREWS and TOOL INCLUDED: The bottle holder comes with 1 Allen Key and 4 screws, which perfectly fits the cages.
UNIVERSAL: The bike bottle holder fits most sizes of bottles, min bottle diameter is 2.75inch(68.9mm) max bottle diameter is 3inch(76.2mm).
EASY INSTALLATION: Only two screws need to be fastened, it could be very easy to install it with the allen key.
SUITABLE for DIFFERENT BIKES: The cage works on moutain bike, road bike, touring bike and more, please check the distance between the holes on your bike are from 2 to 2.75 inch.