4-pack of tie-down ratchet straps with strong polyester webbing and auto-locking ratcheting system. Please note : Once finished tighten, do close the ratchet. Do not open the ratchet Sturdy ratchet and durable straps provide robust, stable, reliable performance Plastic-covered S hooks prevent scratching and allow for fast, easy connections to anchor points Quick-release bar releases the strap instantly; rugged straps will not loosen with road vibration Each tie-down strap offers a 635 kg capacity and measures 4.5 m long by 2.5 cm wide