Feature: 1. Made of full carbon fiber, it has excellent strength, dimensional stable, durable and scratch resistant. 2. It can hold the bottle firmly, and not easy to drop even when riding on rugged mountain roads. 3. Easy to install and can be firmly fixed on the frame without burdening the ride. 4. Fits for bottles about 74mm in diameter. Simple design, easy to take bottle. 5. Lightweight and portable, suitable for all bicycles with bottle cage screw holes. Specification: Ultra-light water bottle holder, durable, wear-resistant and good toughness, firmly hold your bottle during your riding journey. Features: Made of full carbon fiber, it has excellent strength, dimensional stable, durable and scratch resistant. It can hold the bottle firmly, and not easy to drop even when riding on rugged mountain roads. Easy to install and can be firmly fixed on the frame without burdening the ride. Fits for bottles about 74mm in diameter. Simple design, easy to take bottle. Lightweight and portable, suitable for all bicycles with bottle cage screw holes. Specifications: Color: Black Material: Carbon Fiber Applicability: Suitable for bottle with a diameter of 74mm Weight: 18g/ 0.6oz Packing List: 1 * Bottle Holder Package List: 1 * Bottle Holder