General description Permanent, high-quality industrial-grade swing hangers, perfect mounts for any indoor or outdoor wooden beams and steel beams. These hangers are suitable for various applications including swings, yoga swings, yoga chairs, hanging hammocks, Olympic rings, gymnastic rings, gym swings, sandbag swings, and punching bags. Technical specifications Weight capacity: 300 kg Dimensions: 21 cm Material: Stainless steel Drill size for pre-drilling: 8 mm Total weight limit: 800 kg Installation For wooden beams: Pre-drill a hole using an 8 mm drill size, place two tight nuts and washers on top, and tighten. For steel beams: Place one nut and washer on the top and another side of the beam, then tighten. All mounting hardware is included for easy and quick installation. Usage These heavy-duty hooks are designed for use by both children and adults, providing a safe and secure option for hanging various heavy objects from an overhead support.