Made of galvanized stainless steel, one-piece structure, durable, anti-corrosion, anti-rust. Coating with PVC layer with excellent anti-slip performance and never scratch your bike. Multi-function, ideal for garage/workshop ceiling storage of bicycles/tires/garden hose/tools and lawn furniture. Compatible with most standard bicycles and tires, please check the detailed information on the product image before purchasing. Pack of 10, they are the best space saving accessories for your home.