Custom Race Water Bottle Cage is the first-self-adjusting bottle cage that adapts to the diameter of the bottle.Features-Elastomer joint expands and contracts depending on width of bottle used-Molded fiberglass-reinforced construction diameter of the bottle-Adjustable elastomer rubber helps to absorbs vibrations-Works well with small and sloping framesItem Specifications-Color:White/Glossy Black-Defined Color:Multi-Color