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Features: Water bottle holder, forming one, modern design! Super toughness, encountered strong impact will not be deformed and broken; With perfectly streamlined, plastic water bottle or aluminum water bottle used to carry, lightweight, suitable for road bikes and mountain bikes. Specifications: Size: 144 * 72 * 72mm Net Weight: about 35g Main Color: Black Material: Carbon Fiber Fit for: the appropriate 600cc ~ 750cc bottle Suitable for all kinds of glass bottle cup bottom diameter greater than about 55MM Package Included: 1* Bicycle Carbon Fiber Water Bottle Drinks Holder