[Full carbon fiber, light and strong]: This carbon fiber bottle cage is made of 100% full carbon fiber material, weighing only 22 grams each. Despite its light weight, all carbon fiber materials are stronger and more stable, and have good toughness, no deformation and corrosion resistance. It is very suitable for water bottles with a diameter of 72-74 mm. [Design]: The carbon fiber bottle cage looks beautiful and stylish. It is a favorite of many road cyclists and mountain bike riders. The compact design can be used on any road. To maintain the stability of the water bottle, it can be used during riding. Easily access the water bottle. [Wide range of applications]: This carbon fiber bottle cage is very suitable for road, mountain, hybrid, touring and electric bicycles. Buy two bottle cages to keep water for ultra-long distance riding so that you can go further. [Easy to clean]: High-grade carbon fiber material with beautiful texture. Very easy to wipe and clean. [Quick and easy installation]: Use a 4mm hexagonal wrench (included) to fix the cage to the screw holes on the frame. Installs on bike frame in 60 seconds. Oval mounting holes allow for fine adjustment of position on frame. Includes 2 stainless steel bolts.