Surface Treatment: Our garden hoops for row cover are coated with plastic, you don't have to worry about leaving a bunch of tiny splinters on your hands after using them. No irritating/ scratching your hands when handling greenhouse kit.Material: Our garden hoops are made from high-quality fiberglass, has good flexibility, are rust-proof, and are more plant-friendly than metal. Garden stakes sturdy enough to hold up to intense ultraviolet rays, durable and reusable.Package: Include 30 pcs 16 Inch rust-proof fiberglass greenhouse hoops, 25 pcs 2 inch metal connect pipes and 20 pcs 3.4 inch clamps. DIY your own grow tunnel!Warm Tips: When installing fence stakes, we recommend using 3 or more greenhouse hoops, please avoid too large a bending Angle (too small opening spacing), otherwise, they are easy to break.Customer Service: If you have any questions about the products, please contact us and our customer service will solve them for you as soon as possible.