Cage Mount is a fixer for attaching an additional water bottle cage to the handlebars or seat post. Provides convenient access to an extra water bottle during extended commutes or when cycling in warmer weather. Specification Clamp Fits diameters 22mm - 38mm (shims included) Material: Engineering Grade Plastic / Steel Mount - Handlebar / Seat Post Size (L x W x H) - 7.0 x 2.7 x 7.5 cm The TOPEAK Cagemount is a practical accessory allowing you to hang a bottle cage on the handlebars or seat post of your bike. Clamp fits 22 to 38-Millimeter shims included The holder has a weight of 45g Ideal Product