Design: Weighing only 55g, this carbon fiber bottle cage is designed for minimal weight impact on your cycling performance. Material: Made from aluminum alloy, ensuring durability that complements any bike. Universal Fit: Compatible with most standard-sized water bottles, this holder is perfect for road and mountain bikes alike. Enhanced Stability: Securely holds your water bottle in place even on rough terrains, making it ideal for both competitive and recreational cycling. Easy Installation: Comes with all necessary mounting hardware for quick and easy setup on your bicycle. Material: Aluminum Alloy Color: Black Package Contents: 1 * Water bottle cage 2 * Screws Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.