PREMIUM QUALITY SWIVELS: SUS304 FOOD GRADE STAINLESS STEEL swivel ring, 100% PERMANENT ANTIRUST, HIGH QUALITY INDUSTRIAL CONSTRUCTION. GREAT UPGRADE CHOICE FOR ANY KIND OF RIGGING AND HANGING: For use with static and dynamic ropes placed between a load and a rope or cable, can be rotated 360 degrees and the rope cannot be twisted. PATENTED INNOVATIVE DOUBLE SEALED PATENT DESIGNS: 360 free rotation without friction, very compact and symmetrical pivot, total weight limit - 1,200 lbs, 800 lb bearings rotate freely. WIDE COMPATIBILITY: Supports Hanging Swings, Hammock Chair, Climbers, Aerial Silks, Pod Kids Swings, Outdoor Indoor Kids Chair Hooks, Round Spider Web Swings,spider webs, suspenders, straps, branches, suspenders Reliable and smooth rotation without twisted chains or cords. If you want to enjoy the fun of spinning, the heavy-duty swing spinner is a must-have to upgrade your swing into an ultra-smooth spinning machine. Kids love it The swing swivel supports various kinds of suspension and rigging, such as swings, hanging chairs, hammocks, tire swings, punching bags, sports ropes fitness ropes or tangled and twisted ropes, suitablefor indoor and outdoor use. DIMENSIONS: Pivot: 3.77 x 1.57 inches, hook distance: 0.98 inches Warning: In order to ensure safety, please check that the screws are tight before use.