GEEDIAR Bike Water Bottle Cages，2PCS Ultra-Light Aluminum Bicycle Water Bottle Holder

SUPERIOR QUALITY MATERIAL: high-quality aluminum alloy materials and manufacturing processes, with additional strength and durability, and light in weight.THE PACKAGE INCLUDES: 2 pcs of bike water bottle holders; 1 set of installation tools, including a hex wrench and 4 mounting bolts.EASY INSTALLATION: Fix the bottle holders in the screw hole on the frame by using a 4mm hex wrench.UNIVERSAL: Applicable to most standard bicycles. Adjustable and smooth design, can fit most water bottles, and maintain a firm fit.