Ultimate Hanging Kit Hammock Chair - Concrete Ceiling and Wooden Beam Hook Description: And complete: made of high quality 304 stainless steel, durable, high load capacity, corrosion resistance, high hardness, rust resistance, waterproof. Safe and reliable: The durable commercial-grade swing hangers are designed for use by both children and adults. Ceiling bracket diameter 90mm, load capacity up to 500Kg. Large areas of application: Our ceiling hooks can be used to hang chairs, hammocks, punching bags, swings, yoga towels, hanging children's chairs, children's swings, floating chairs, hanging seats, love swings, trainers and more. 360 rotating design: The stainless steel swivel allows you to rotate and thus prevents twisting (line, chain, belt, belt, etc. ) and protects it from wear and tear and can be used on a larger scale. Like playgrounds, swings, swings for the veranda or hammock. Easy to install: ma two holes and then installs screws. Specification: Fixed disc diameter: 90mm/3,54inch Insurance buckle: 80x39mm / 3.14x1.53 inch Expansion screw: 11.5x67mm / 0.45x2.63 inch The package includes: 1 piece. Fixed disk 4 pieces of expansion screw 1 piece insurance deduction 1 piece rotating rings