Features： 1、Stainless Steel Material: Made of high quality stainless steel material with high hardness, durable, rust and corrosion proof. 2、High Bearing: Has a load bearing capacity up to 250kg/551.2lb, support most of daily and some special use. 3、Welding Connection: The welding connection is firm, not easy to crack, smoothsurface has no burrs, can improve your feelings. 4、Suitable Range: Suitable for aerial yoga, porch, swings, sandbags, rigging, kid's chair, a variety of suspension uses. 5、Package Content: The package contains a square shape door buckle, 4 expansion tubes, for convenient installation. Specification： Item Type: Hammock Hanger Material: Stainless Steel Application: For Yoga Training, Hammock, Hanging Chair And More Square Door Buckle: M8 Expansion Screw: Approx.6x50mm/0.2x2.0in Weight: Approx.133g/4.7oz Bearing Capacity: 250kg/551.2lb Package List： 1 x Square Buckle  4 x Expansion Screw