XUEMEI: Quantity: 2 pieces Color: silver Size Material: 7mm, Length: 108mm, heavy duty, strong, can withstand up to 500kg, made of high quality stainless steel, robust steel construction, good performance, corrosion resistant, durable and safe. Safe and Steady: Our hammock accessories are the parts you need to create a comfortable hammock both indoors and outdoors. It attaches securely to your swing chair, allowing you to swing and rotate without tangling or twisting, quietly, stress and vibrations. Easy Installation Relieves Collisions: These swing suspension hooks with hooks at both ends, the swing spring can be easily connected to your hammock without the need for tools or complicated operation. The spring helps relieve stress from impacts, provides a more comfortable, softer feel and increases the lifespan of your hammock, in addition to your mounting surface. Wide Use: Enjoy your indoor and outdoor activity with our spring swing suspension kit, which is specially designed for hanging your swing bench, hanging chair, hammock or hanging chair, swing chairs, sandbag or other heavy objects. We introduce a unique, smooth suspension system for hours of quiet movement with safe, smooth swinging. Perfect for your patio, porch, horizontal tree trunk or ceiling mounting.