Amgate 2 PCS Suspension Ceiling Hooks with 8 Screws - Stainless Steel Swing Hanger Kit Hooks for Yoga Trapeze Sling Hammock Hanging Chair

The wall/ceiling mount bracket content: 2 Ceiling hook and 8 wood screws to use for beams, tree or boards; Please make sure to buy concrete screws or mounted to studs if you want to use for dry wall or concrete, Or use appropriate specialized fasteners Made of premium stainless steel to protect against corrosion & rust Measurement: One length of hole to hole is 8cm(3.15"), the other length of hole to hole is 4cm(1.6"), thickness of hook shaft is 10mm(0.39"), detail size can look for 2th picture Capacity up to 500 lbs, Perfect suspension hanger hooks for yoga trapeze swing, proching swings, ceiling mounts gymnastics rings, hand rings, hammock, hanging chairs, punching bags, body training systems, boxing and other indoor or outdoor object For install - First to mark the 4 holes by the hooks, then insert the screw to ceiling by the driver tool; Take the stud detector and detect the metal or wood stud to ceiling if you use for concrete or dry wall