4 x diamond-shaped wall bracket: 81 x 50 mm 2 x clamping screws with 2 hooks, clamping length: 190 mm - 280 mm 2 x carabiner: 81 mm, bar thickness 7 mm 16 x Screws, expansion anchor bolt x 16 PCs Material: galvanized steel (stainless) Attach your sail with the wall rings and carabiner holder directly to the base. Turn the clamping screws before installation to the maximum length. This will give the sail maximum tension after installation. Note the necessary inclination of at least 14% especially for waterproof sails so that rainwater can easily drain.