Material: Aluminum Alloy Size: S:14cm/5.51in M:20.5cm/8.07in Color: Three colors 1. Made of high-quality aluminum alloy, it is light, effectively reducing the burden of riding, while ensuring the firmness and stability of the regulator. 2. The unique design makes it easy to install, without complicated tools, and can be assembled in a few minutes, suitable for various types of bottle cages. 3. The adjustable range is wide, and it can flexibly adapt to bottle cages of different sizes to meet personalized needs and improve riding comfort. 4. The structure is and reliable, and it can provide stable support even on bumpy roads, preventing the bottle from loosening or falling off, and ensuring riding safety. 5. The appearance is exquisite and beautiful, perfectly integrated with the of modern bicycles, adding a sense of fashion to your bike. The package includes: 1pc Bike Stand Adjuster