HEAVY DUTY HOOK: This stainless steel ceiling and wall hook is ideal for hanging heavy equipment and decor. Our set consists of 1 swivel hook, 1 fixed hook, 2 screws and 2 expansion bolts. The main plate measures W7 x D4 x H9.6cm, whilst the hook measures L8 x W4cm. For full measurements, see picture 2. The swivel hooks have a maximum load capacity of 400kg.304 STAINLESS STEEL: This high-quality 304 stainless steel ring is extremely durable and strong. The material is very hard, non-toxic and environmentally friendly. Stainless steel will not rust and is corrosion resistant, and these hammock hooks can be fitted indoors or outdoors, they are ideal for professional purposes and can withstand long-term use. They are easy to clean and can be attached and removed multiple times.EASY INSTALLATION: Each punching bag hook is pre-drilled with 2 holes for easy fixing to a ceiling or wall. Hex screws (expansion bolts) are made for concrete and other screws are made for wooden surfaces. Our kit is easy to install and no complicated assembly is required. The innovative design of this swivel hammock hook allows for full 360-degree rotation. So, there will be no twisting or tangling of the hardware.VERSATILE CEILING HANGING HOOK: Ideal for hanging a ceiling light, these swivel hooks have many uses. Set up your hammock, swing, hanging chair, aerial yoga strap, punching bag, playground or porch swing, gymnastic ring, Olympic ring or resistance band. They will support your equipment for a long time. Use them for smaller decorations, such as plant pots, lanterns and other light fixtures.