Item Type: Swing Spring_x000D_ Model: Approx. 8mm/0.3in_x000D_ Material: Iron Galvanized_x000D_ Bearing Weight: 500kg/1102.3lb_x000D_ Weight: Approx.505g/17.8oz_x000D_ Purpose: Swing Chair Accessories 1Suitable for various types of hanging chairs, hammocks, egg chairs, wicker baskets, boxing sandbags, etc. 2Special spring steel, galvanized surface treatment, can be used as a swing chair accessory. 3Precise casting parts, rust?proof and corrosion?resistant, durable and prolonged service life. 4The spring load is 500kg, which helps to reduce the pressure and provide a more comfortable and soft feeling. 5It is safely hung on your hanging chair or swing, with strong load-bearing capacity, no need to worry about breaking.2 x Swing Spring