DESIGNED FOR DURABILITY AND RELIABILITY: The Shade Hardware Sail Rig Kit is constructed of premium 304 stainless steel to resist rust and corrosion. The length of the tensioner can be adjusted from 5" to 7". The hardware kit is sturdy and corrosion resistant. The shade sail hardware kit is essential for hanging outdoor rectangular/square shade sails. Versatile: the hardware kit shade sail is perfect for installing all square/rectangular shade sails, it can be installed between trees, wall to wall, wall to tree, wall to pole or anywhere. It has a high load capacity to keep your sail stable in the wind and is suitable for windy areas or large rigs such as shade sails, awnings. All hardware in one kit: 2 tensioners, 4 diamond eyelets, 2 carabiners/hooks, 16 screws, 16 plastic expanders. Having the right hardware makes installation easier. The easy-to-use shade sail hardware kit fits most types of shade sails, and setting up your favorite recreation spot is easy with this handy shade mounting kit. Enjoy the cool summer. Adjustable Tensioner: The shade sail hardware kit includes an adjustable tensioner to tighten the sail during installation. Tensioner length: 12.7 cm, extension: 17.8 cm, for adjusting the tension or length of ropes, cables, tie rods and other tension systems. You can choose the distance between your shade sail and the wall/pole/point it is attached to. Easy to install: this package includes all the hardware you need to mount the sail kit of rectangular/square/triangular shade on any structure, tree or pole. Having the right hardware is easier than installing it yourself, and buying a pre-installed hardware kit makes your life easier