【Heavy Duty Hook Kit】: Our ceiling hook is made of high quality 304 stainless steel materials, no rust, corrosion resistance, high hardness. With a load capacity of over 450 kg, it is safe enough for various applications. 【SAFE & 【HEAVY DUTY】Commercial grade heavy duty swing hooks are designed for use by children and adults, and rated for residential use at a rating of 450kg, they are secure. 【180° Rotation】180° rotation, custom-made silent nylon bushing and specially designed lubricating grease to prevent metal friction, creating a quiet, smooth and exceptional swinging motion, maintenance-free. 【Spring Snap Hook】Versatile fastening, rigging and anchoring hardware - Allows quick connection/disconnection of ropes, chains, straps; Opens and closes smoothly as the spring-loaded door makes it easy to attach important items. 【Widely Application】For indoor and outdoor use, applicable to concrete ceilings and wooden beams, the best anchoring solution for all suspension straps and resistance