"Description:Strong material: The bicycle mounting base is made of plastic and metal, with strong tensile capacity, durability and long service life.Professional design:Water bottle fixing mounting rack is designed for bike, which can be placed anywhere on the bicycle.Advantages: Compared with other base, bottle cage mount holder has a wider application range and takes up less space.Practical efficacy: Road bicycle cage mount base can help effectively reduce the burden of long-distance riding.Suitability: The diameter of the kettle rack is about 2.3 cm/0.91 inch, and the diameter of the bottle is 26-51mm/1.02-2.01 inch.Specification:Material: Plastic + metal.Size: Approx. 20x12x2 cm/7.87x4.72x0.79 inch.Bottle Holder: Diameter: approx. 2.3 cm/0.91 inch.Suitable water bottle diameter: approx. 26-51mm/1.02-2.01 inch.Note:There might be a bit color distortions due to different computer resolutions.There might be a slight errors due to different hand measurement.Package Includes:1 Piece Mounting Clip.2 Pieces M5 Screws.2 Pieces Fixing Buckles.1 Piece M4 Hexagon Wrench"