Description Adjustable Tensioner: The Shade Sail Hardware Kit Has Adjustable Tensioners To Tighten The Sail During Installation. Tensioner Length: 5, Extended Length: 7 For Adjusting The Tension Or Length Of Ropes, Cables, Tie Rods And Other Tensioning Systems. Easy Installation: This Set Includes All Hardware Needed To Install A Square/Rectangular Shade Sail To Any Structure, You Can Mount It Between Trees, Great Shade For The Back Patio Or Anywhere You Want. The Sunshade Hardware Kit Resists Bad Weather And Strong Wind Very Well, Can Be Placed Under The Curtain To Relax Comfortably. Anti-Rust And High Load Rate: Sunshade Made Of 316/304 Stainless Steel Marine Grade. Special Stainless Steel For Outdoor Use, More Durable And Rust-Proof, To Keep Your Shade Sail Kit From Being Whipped By A Fast Breeze Or Being Tossed About By Harsh Weather Conditions. Put The Right Tension On The Sail. Very Durable And Adjust A Few Adjustments. Widely Used: The Shade Sail Hardware Kit Is A Great Fit For Installing All Square/Rectangular Shade Sails, And You Can Mount It Between Trees, The Wall To A Tree, The Wall To A Pole Or Wherever You Want. Includes All Hardware Needed To Install A Shade Sail On Any Structure. Large Load Capacity To Keep Your Sails Stable In Windy Conditions. Package Includes: 4 Bumpers, 2 Tensioners, 2 Spring Hooks, 16 Screws, 16 Plastic Plugs. This Heavy Duty Hardware Kit Is Recommended For Rectangular And Square Shade Sails.