ADVANTAGE: Processed by professional anodized surface treatment with smooth appearance; the safety rotational device will not be easily oxidized and corroded to provides you longer service periodHIGHEST QUALITY SWIVELS : Totally silent, frictionless 360free rotation with sealed ball bearings, very compact and symmetrical swivel; You will say goodbye to twisted or kinking ropes & chains. Climbing & swinging become more joyfulMATERIAL: The safety rotational device is made of quality aluminium magnesium alloy; our swing swivel features high strength; great portability and excellent durability; 30kN (3000 kg) breaking strength testedWIDELY USE: It is lightweight and easy to carry; provides convenience for your trip to climbing; yoga swings; hammock swings and other indoor or outdoor activities; such as hanging swings; tree swing or anywhere need to be suspendedEASY TO CARRY: Our swing spinner hook aims to accompany you for sports adventures; works well in rock climbing; swing setting; yoga swings; exploration; aerial work; rescue; and other work; Also it is popular for all kids for rigging and hanging