High Quality Stainless Steel: Made of high quality M6 304 stainless steel, high load bearing capacity, durable and sturdy, good corrosion resistance, waterproof/fireproof/rust resistant. The shade sail fixing kit includes: 2 Tensioners, 4 Eye plate, 2 Carabiner, 16 Screws, 16 Plastic expansion tube. Adjustable tensioner: Adjustable tensioner to create tension, this which works perfectly to tighten or loosen the shade sail. Get the beautiful, taught canvas without the dreaded sag. Designed for durability and reliability. Wide Application: Complete shade sail hardware kit is easy to use and perfect for most types of shade sail to hang your awning safely and easily. Easy to use on solid structures: This shade sail installation kit is easy to use on solid structures such as drywall, concrete, brick , wood and cement. It adapts to any type of square and rectangular shade sail to set up your favorite relaxation spot with ease.