Type: The hole and hook turnbuckle is used to tighten a taut rope and regulate the elastic effect. Material: The turnbuckle hooks are made of 304 stainless steel for strength, durability, waterproof, rust and corrosion resistance. Use: Suitable for tightening rope and regulating the elastic effect; perfect for steel wire, antenna, clothesline, chain and other ropes. Use: Perfect for indoor and outdoor use. Easy to use: a simple twist to increase/decrease the tension. Package Content: 10 x M6 Hook Turnbuckle