Intentional Structure: : Double ended swing swivel features 2.1-inch (5.3cm) wide D rings; Triangle shape creates a fixed point for your carabiner and rope to sit; This prevents your swings from sliding or shiftingQuality You Can Trust: : 4.3-inch (10.9cm) tall aluminum alloy climbing swivel ensures optimal strength and durability; Stable ball bearings ensure the rotating axis glides smoothly without falteringOptimal Strength: : With a 2500-pound (1,134kg) weight limit you can be sure these ceiling swing hooks will stand up to your needsFrom Hammocks to Boxing Bags: : Get ready for a workout or relaxation with the Big Swivel Hooks Heavy Duty Rotating Hanging Device; Hang your sensory swing, hammock pod, tire swing, boxing bag, aerial dance silks, or even your heavy hanging plantsPrevent Ropes from Tangling and Kinking: : 360 rotating swing hanger allows for free-standing rotation that is smooth and frictionless; Double swivel clips to your ropes or chains with carabiners (not included)