LSD Glass Fiber Plastic Ultra Light Cycling Mountain Road MTB Bike Bicycle Water Bottle Drink Cage Holder Rack Outdoor Sports Size: 144 x 85 x 84 mm;Diameter: MAX. 9cm;Material: Plastic + ( Glass fibers ) Water bottle holder, forming one modern design Super toughness, will not face a strong impact on the deformation and fracture Can be comparable to water, carbon fiber frame. Plastic material, comparison of other aluminum frame less water wounded in action bottle is easy! The perfectly streamlined for carrying plastic and aluminum bottles, lightweight application.