Description: Made of high quality 316 marine grade stainless steel, extremely strong and resistant to the elements. The hardware installation kit comes with everything you need to hang a shade sail. Hardware kits are recommended to install a shade sail to any structure, tree or pole. Special design with double end sliding cap used to quickly and reversibly connect components. Easy to install and convenient to use. Specification: Material: 316 Stainless Steel Size Chart: Dome Solid Core Slide Cap: 22mm/0.87inch Self Locking: 69x25x20mm/2.72x0.98x0.79inch Package Includes: 1 Set Sun Shade Sail Hardware Kit