Major advantages of upgrading to this product: 1. Made with a quality light weight high tensile strength aluminum 6061 T6 for greater durability. 2. Stainless steel is a strong material with great durability and stability. It can also prevent rusting. 3. Adjustable design using clockwise and counterclockwise threads. Note: the data of this product is not the standard data when it leaves the factory, so it needs to be adjusted by the customer