Features: 2 types for you to choose, 81pcs/pack meet most of your needs. High quality stainless steel hardware kit with maximum corrosion resistance and durability. Easy to use, you can install your shade sail between trees, walls to wall, wall to tree, or wherever you want it. Adjustable turnbuckles can provide the most suitable tension for your for sun shade sail, make your shade sail more tight and stable. Stainless steel hardware kit for rectangle and square for sun shade sails installation, suitable for outdoor use such as patio, lawn or garden. Specifications: Material: Stainless Steel Size: As Picture Shows Type: 5mm/6mm Package Includes: Turnbuckle(5mm) x 2 Eye Pads x 8 Snap Hooks x 4 Turnbuckle(6mm) x 2 Screws x 32 Plastic Expansion x 32 Extension Cord x 1 note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.