High quality stainless steel: Made of high quality M5 304 stainless steel, high load capacity, durable and sturdy, good corrosion resistance, waterproof/fireproof/rust resistant. The fixing kit for shade sail includes: 2 tensioners, 4 eyelets, 2 carabiners, 16 screws, 16 plastic extensions. Adjustable tensioner: adjustable tensioner to create tension, which works perfectly for tightening or loosening the sun sail. Get the canvas looking beautiful and learned without the dreaded sagging. Designed for durability and reliability. Wide application: The heavy-duty complete shade sail mounting kit is easy to use and perfect for most shade sail types to hang your awning securely and easily . Easy to use on solid structures: This shade sail mounting kit is easy to use on solid structures such as drywall, concrete, brick, wood and cement walls, and will adapt to any type of square and rectangular shade sail to install your favorite relaxation spot with ease.