Wide Application - 2 pcs All in 1 Universal Rectangle/Square Sun Shade Sail Hardware Kits include 4 turnbuckles, 8 pad eyes & 4 carabiners Durable in Use - 304 stainless steel hardware features rust-resistance & wear-resistance Fine Adjustment - Carabiner for fixating sail, turnbuckles to adjust the length Stable Construction - Pad eyes for hanging carabiner & turnbuckle; Plastic anchors reinforce screws Easy to Assemble - Hook & carabiner are easier to take down while not using in inclement weather