Perfect use for hanging chairs, hammock, porch swings, punching bags, swing chairs, heavy bags and other object from overhead mount Fit Almost All Punch Bag,Hanging Chairs,,Egg Chair,wicker basket Gard for Added Weather Resistance The spring helps relieve stress from impacts, provide a more comfortable, softer feel and increase the lifespan of your hammock, in addition your mounting Spring Rated over 350kg Colour:silver Material:Galvanized iron Size:11.3 x 4cm Package Contents: 2 x Hammock springs Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.