4 x diamond-shaped wall brackets: 81 x 50 mm 2 x clamping screws with 2 hooks, clamping length: 190 mm - 280 mm 2 x carabiners: 81 mm, bar thickness 7 mm 16 x screws, expansion bolt anchor 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 to the maximum length before installation. This gives the sail maximum tension after installation. Note the necessary slope of at least 14%, especially for waterproof sails, so that rainwater can easily drain.