Product Description Material: Stainless steel Size: fixed plate, diameter 90mm; hook, 99.5*47*8mm; screw, 11.5*67mm Color: silver, black Quantity: 1 set Package content: 1*fixed plate, 1*spring hook, 4*screw 1. SAFE & DURABLE The chair suspension frame can withstand loads of up to 400 kg and offers a firm hold. The sandbag hanging device is also suitable for mounting on a solid concrete ceiling. The sturdy safety lock can prevent sandbags, hammocks etc. from slipping off. 2. CORROSION RESISTANCE, HIGH HARDNESS: Stainless steel ring made of high quality materials. No rust, corrosion resistance, high hardness, non-toxic and pollutant-free and protects the environment. Suitable for multiple scenarios. 3. COMBINATION OF SUITS This set includes 1 fixed plate, 1 snap hook, 4 screws with which hanging chairs, sandbags and other items can be attached very well, it is durable and resilient. 4. EFFORTLESS ASSEMBLY You can easily and securely mount the swing hook set on the ceiling or wall indoors or outdoors. All you have to do is pre-drill four holes in the chosen position, attach the mounting plate, then attach the screws with pins and finally hang the snap hook on the chassis. 5. VERSATILE APPLICATION The heavy duty ceiling hooks are suitable for hanging chairs, sling trainers, gymnastic rings, punching bags, awnings, children's swings, hammocks, suspension trainers and can be mounted with the punching bag suspension.