RongXuan 2 Pieces of Bicycle Bottle Holders Full Carbon Water Bottle Holder Lightweight Drink Holder for Mountain Bike Road Bike Matte

["Ultralight and strong material: 100% FULL 3K carbon fiber material - Incredibly strong and light (only 23 ± 2g), non-deformable and corrosion resistant. Effectively reduce weight for long-distance travelers.", "Advantage: Holding power keeps the bottle in place while riding on rough terrain.", "Easy installation and removal. The unique and slim design makes it easy to access your water bottle while riding and allows for easier and smoother insertion/removal of the bottle.", "The bottle holder fits most standard size water bottles: The carbon bottle holder has a diameter of approximately 3.15 inches (8cm), fits a water bottle with a diameter range of 2.83 to 2.91 inches (7.2 to 7.4 cm).", "The drink bottle holder is suitable for most types of bikes, such as MTB/road bike/folding bike and is very suitable for all cyclists looking for an elegant cage to lighten their load while riding."]