1、Stainless Steel: The hammock chair hanging kit is made of high quality stainless steel, which is strong and durable, anti rust and anti corrosion, and of high hardness. 2、551LB Load Capacity: With 250kg/551lb high load capacity, the hanging kit allows your hammock, sandbag and swing chair to hang stably from the ceiling. 3、Firm Connection: The welding is complete, the connection is firm, and the hammock hanging kit is not easy to break, loose and overflow. The surface is smooth without burrs. 4、Spring Hook: The spring can reduce the abrasion caused by impact and bumps and increase the service life of the installed parts. 5、Wide Range of Application: If you want to hang a hammock in the bedroom, swing in the yard, or hang sandbags in the gym, this high load suspension device is ready to use. Item Type: Swing Ceiling Mount Set Product Style: Square Door Buckle M8 + Spring Steel M7 + 5x40mm Self Tapping Screws + Rubber Sleeve Material: Stainless Steel Product Color: As Pictures Shown Product Weight: Approx. 276g / 9.7oz Product Load Capacity: 250kg / 551LB Scope of Application: Suitable for Yoga training, hammock, hanging chair, etc. 1 x Square Door Buckle 4 x Screw 4 x Rubber Sleeve 1 x Spring