1. Our tarp hooks are made of high quality plastic, durable and rounded, they will not tear tarps or nets. 2. Ideal for tarp buttons, round buttons, trailer hooks, ideal for securing all trailer nets, tarp ropes, bungee cords up to 6.0mm in diameter. 3. Different mounting methods can be used for different environments. Our tarp knobs are available in two easy mounting methods, such as stickers and screws. 4. The mesh hooks are perfect for securing cargo with trailer nets, extension hooks or tarps with rubber ropes. The camping stove rubber gasket can be used to replace the top grill of caravan stoves. Specification: Name: Trailer Tarpaulin Knobs Material: Plastic Color: Black Hook Size: 35mm*5mm/1.38*0.2inch Screw Size: 32mm/1.26inch Package Includes: 20 x Round Tarpaulin Knobs 20 x Screws 20 x Stickers Installation Method: 1. if the inner wall of the car is made of metal or smooth plastic, you can use double-sided tape to stick it directly. 2. If the inner wall of the car is made of