XUEMEI: Quantity: 2pcs, Color: Silver, Size Material: 7 mm, Length: 108 mm, Heavy duty, Strong, Can hold up to 500 kg (1100lb), Made of high-quality stainless steel, Sturdy steel construction, Corrosion-resistant, Durable and safe. Safe and firm: Our hammock accessories are the parts you need to create an indoor or outdoor comfortable hanging chair. It attaches securely to your rocking chair so you can turn and rotate without getting tangled or twisting. Quiet, stable, and vibration-resistant. Simple assembly and collision relief: This swing hanger hook features hooks on both ends. The swing spring connects easily to your hammock chair without tools or complicated operations. The spring helps relieve stress from impacts, providing a more comfortable, softer feel and extending the lifespan of your hammock and mounting surface. Widely applicable: Enjoy indoor or outdoor relaxation with our spring swing hanging kit, designed to hang swing benches, hanging chairs, hammocks, hammock chairs, swinging chairs, punching bags, or other heavy objects. Offers a unique even suspension system for hours of silent, safe, and smooth swinging pleasure. Perfect for patios, porches, horizontal tree logs, or ceiling mounts.