1. Package Accessories ListEach package of shade sail hardware kit contains 80 pcs components: 4 x Turnbuckle, 4 x Snap Hook, 8 x Pad Eye, 32 x Screw, 32 x Plastic Expansion. If there is any part missing or damage problem, we will solve it according to relevant regulations. 2. Great Quality MaterialOur sail shade hardware kit is made from 304 grade stainless steel, which is rustproof, durable and sturdy. It can withstand much weather influence such as heavy rain, wind and snow. 3. Adjustable TurnbuckleThe adjustable turnbuckle has a length adjustment range of 4.7 inches to 6.7 inches, and you can ly adjust the distance from the shade sail to the wall/fixing point position. Meanwhile, the plastic expansion can help to create more tension, and the screws that fix the pad eye won't fall out easily due to the tension of high wind and other weather. 4. Choose a firm and suitable location, drill holes with an electric drill, put in the plastic expansion parts, and then fix the pad eyes with screws. Snap hook and adjustable turnbuckle can adjust the length and tension of the accessories, so that the shade sails have the most suitable looseness and tightness. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.