Square and Rectangle Shade Sail Hardware Kit. Use the high quality steel turnbuckles, eyepad and carabiner to safely secure your shade sail to a variety of anchor points. The square and rectangle hardware kit includes 2 turnbuckles, 2 carabiners and 4 eyepads. Made from High Quality 316 Stainless Steel Everything you need to hang a square or rectangle shade sail Makes installation much easier than do it yourself solutions