Product material: Stainless steel Size: fixed plate, diameter 90 mm; hook, 99.5*47*8mm; screw, 11.5*67mm Color: silver, black Quantity: 1 set Package contents: 1*fixed plate, 1*spring hook, 4*screw 1. SAFE & DURABLE: The chair suspension frame can withstand loads of up to 400 kg and provides a firm grip. The sandbag suspension device is also suitable for mounting on a solid concrete ceiling. The robust 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 free from pollution and protects the environment. Suitable for multiple scenarios. 3. SUIT COMBINATION: This set includes 1 fixed plate, 1 carabiner, 4 screws with which hanging chairs, sandbags and other items can be attached very well, it is durable and resilient. 4. EASY ASSEMBLY: You can easily and safely set the swing hook kit in the ceiling or wall indoors or outdoors. All you have to do is pre-drill four holes in the selected position, attach the mounting plate, then attach the screws with pins and finally hang the carabiner on the chassis. 5. VERSATILE USE: The heavy-duty ceiling hooks are suitable for hanging chairs, sling trainers, gymnastic rings, boxing bags, awnings, children's swings, hammocks, suspension trainers and can be mounted with the boxing bag suspension.