STURDY AND COMPLETE: Made of premium 304 stainless steel, durable, high strength, corrosion resistance, high hardness, rust resistance, waterproof. Sturdy and Safe Safe and Reliable: Commercial grade hangers are rated for use by children and adults. Ceiling bracket diameter: 90 mm - Maximum load: 500 kgWide application areas: Our ceiling hooks can be used for hanging chair, hammock, punching bag stand, swing, yoga towel, hanging chair, sun sail, children's swing, Swedish chair, seat hanging, love swing, sling trainer, etc360 rotation design: The stainless steel swirl allows 360 free rotation and thus avoids twisting of your suspension (rope, chain, webbing, etc.) and protects it from wear and can be used to a greater extent. As playgrounds, swings, porch swings or hanging hammock Easy to install: You need to pre-drill two holes in the concrete and then install the screws. Scope of delivery: 1 ceiling bracket, 4 metal anchors (screws and anchors only for use in concrete), 1 carabiner