Large areas of application: For indoor and outdoor use, suitable for concrete ceilings and wooden beams, the best anchoring solution for all suspension straps and resistance trainers, hammock swing kit. & nbsp; Safe and Reliable Heavy duty commercial quality swing hangers are rated for use by children and adults, and for living areas with a 450KG rating will feel safe and secure. & nbsp; Easy to Install: We pre-drilled two holes for screwing to wooden beams or concrete. Including 4 concrete anchors and 4 hexagonal screws, and a unique design in one piece and can be installed in a few minutes. & nbsp; Innovative design: Design with a strong heavy-duty hook, the hook can be rotated 360 and swiveled back and forth by 180. To ensure safety, we have mounted a SUS304 (stainless steel) O-ring to to prevent the shaft from slipping out. The buckle of the hook is also strong enough to ensure safety. & nbsp; Robust and complete: 304 stainless steel rings made from high-quality raw materials. No rust, corrosion resistance, high hardness, non-toxic and environmentally friendly environment. Suitable for any scene.