Specifications:These hanging kit are made of premium stainless steel for durability.The spring helps relieve stress from impacts and extend the life of the hammock.The hook will be firmly clamped to your hammock or rocking chair so that you can rotate without tangling or having to unravel.Whether you plan to put up your indoor hammock in your bedroom or your swing chair at the backyard, you will find this hanging kit handy.Item Name: Hammock Hanging KitMaterial: Stainless SteelFeatures: 360 Degree Rotation, Powerful Ceiling Mounting, DurableNote: Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Package Included:1 x Eye Plate4 x Self-tapping Screws1 x Spring Hook1 x Rotating Ring4 x Expansion Screws1 x Carabiner Hook