1. Made of high quality aluminium alloy material, sturdy, durable, high strength and durable. 2. Lightweight and small, easy to store and carry. 3. Easy installation to ensure safety, each component meets strict standards to ensure strength. 4. Suction cup design, easy to use, with hook loop, better attach bicycle rear wheel to prevent shake and falling. 5. Application for mountain bikes, road bikes, it is an ideal tool for you.