Description:

Made of Aluminum Alloy, smooth surface, rust-proof and durable.
Come with 2 adapter pads and spanners, help you to install the adapter easier and make it stable and heavy duty.
The bracket can be rotated 90 degrees and you can find the right mounting position.
Fits for diameter of seat post or handlebars: 19-33mm(Hexagonal Spanners are included)
Good companion for riding bike outdoors, makes cycling more fun. Great accessory for mountain bikes or other bicycles with bottle cages!

Specification:

Material: Aluminum Alloy
Size: approx. 8x7x2cm/3.1x2.8x0.8inch
Installation Diameter: 19-33mm/0.75-1.3inch

Package Includes:

1 Piece Bicycle Water Bottle Holder Adapter