Hammock -ceiling hooks Highlights generic brand ceiling hooks Description: Sturdy and comprehensive: made of high quality 304 stainless steel, durable, strong load capacity, corrosion resistance, strong hardness, rust resistance , raincoat. Safe and Reliable: Heavy duty commercial grade swing hangers are designed for use by children and adults. Ceiling support diameter 90 mm, load capacity up to 500 kg. Wide application areas: our ceiling hooks can be used to hang chairs, hammocks, punching bags, swings, yoga towels, hanging chairs for children, shade sails, children's swings , floating chairs, hanging seats, love swings, sling trainers and much more. 360 rotation design: The stainless steel swivel allows 360 free rotation and thus prevents your suspension (rope, chain, belt, strap, etc.) from twisting and protects it from wear and tear and can be used on a larger scale. Like playgrounds, swing sets, porch swings or hammock swings. Easy to install: it needs to pre-drill two holes in the concrete and then install the screws. Delivery includes - 1 ceiling bracket, 4 metal dowels (screws and dowels only suitable for use in concrete), 1 carabiner. Specification: Fixed Disc Diameter: 90mm/3.54inch Insurance Buckle: 80x39mm/3.14x1.53inch Expansion Screw: 11.5 x 67mm/0.45 x 2.63inch Package Includes: Disc fixed 1 piece (pack of 2) Expansion screw 4 pieces (pack of 2) Insurance deduction 1 piece (pack of 2) Rotating rings 1 piece (pack of 2) Note: Please allow the measurement deviation of 1 to 3mm due to manual measurement. Due to the different monitor and light effect, the item's color may be slightly different from the color showed on the pictures.