Made from premium 316 marine grade stainless steel with maximum durability and corrosion resistant. So it also suitable for seaside use. Adjustable turnbuckle to create tension, in length for adjusting the tension cables, tie rods.High load carrying capacity can make your shade more sails stable. High load carrying capacity, and stainless steel has rust-proof properties, so it is especially suitable for outdoor use. Suitable for square or rectangle shade sail installation, you can mount it between trees, wall to wall, wall to tree, wall to pole or wherever you need to hang a heavy stuff. Suitable for square or rectangle shade sail installation, you can mount it between trees, wall to wall, wall to tree, wall to pole or wherever you need to hang a heavy stuff.