Perfect Design: The plastic expansions of hardware kit help the screws be attached to the wall or billboard stronger and make the triangle shade sail to be sturdy enough to hold up in a high wind area; And the turnbuckles can no doubt create tension meeting your needs perfectly The most professional way to install your sun shade sail and get the proper amount of tension Perfect Design: The plastic expansions of artouch hardware kit help the screws be attached to the wall or billboard stronger and make the triangle shade sail to be sturdy enough to hold up in a high wind area; And the turnbuckles can no doubt create tension meeting your needs perfectly The most professional way to install your sun shade sail and get the proper amount of tension Sun Shade Sail Hardware Kit 6 Inch for Triangle Sun Shade Sail Outdoor Installation 316 Stainless Steel Best Quality - Our Shade Sail Hardware Kit is made from premium 304 stainless steel with maximum durability. It is corrosion resistant and suiabale for garden and yard use.Best Design - Our Shade Sail Hardware Kit contains extra plastic expansion to fit screws which are compatible with sharp so as to be more firmly rather than directly attached to the wall. Wide Application - Our Shade Sail Hardware Kit is suitable for triangle or rectangle sun shade sail installation. It is easy to use. You can install your shade sail between trees, walls or wherever you want.