New ModelsDetails:Item name: spring hookMaterial: metalQuantity: 2 piecesFeatures : Hammock Accessories, Durable, Weather ResistanceWire Diameter: Approx. 7mm/0.3"Length: 108mm/4.25"(Approx.)Package Includes:2 x Garden Swing SpringsHeavy duty steel construction. Zinc plated and clear coated for added weather resistance. Very strong and can be used for a long time.The spring helps relieve stress from impacts, provides a more comfortable and softer feel and will increase the life of your hammock, as well as your sleeping surface. assembly.Compatible with almost all punching bags, punching bags, hanging chairs, cocoons, egg chairs, wicker chairs, etc.Rated spring capacity of more than 700 lbs.Contents: 2 x Carabiner. Wire Diameter: 7mm/0.3"(Approx), Length: 108mm/4.25"(Approx).2pcs Heavy Duty Extension Carabiner Hanging Hook Accessories Swing Seats Fishing Spring Bag for Hanging Chair Hammock And Swing .Strong steel structure. Galvanized and transparent coating for greater resistance to atmospheric agents.The spring helps relieve the stress of impacts, provides a more comfortable and soft feeling and increases the life of your hammock, in addition from your mounting surface.Rated spring capacity of over 700 lbs.Fits almost any punching bag, hanging chair, cocoon, chair in egg shape, wicker basket.