PERGEAR Emgreat Lightweight Carbon Fiber Bike Water Bottle Holder Cage Water Bottle Cage- Pack of 2 Ultra light, high-strong, non-deformable, corrosion resistant etc. Only 1.05oz/30g per one, No logo design for clear and clean appearance. Hight: 5.7"/14.5CM, Max diameter: 2.95"/7.5CM. The design is convenient to hold and remove bottles. Holding power keeps the bottle in place when riding over rough terrain