The replacement ring for the Sure Shot original Gooseneck. ;Extra heavy duty ring for parks and schools.18"" (45cm) powder coated red solid steel ring.Reinforced integrated backplate.Complete with white 12 loop net.Replacement ring for 645 Gooseneck system.Side guards to prevent injury.Can withstand up to 320kg load.Din 4 hole pattern 4.5"" x 3.5"" (110x 90mm) .Nuts and bolts included.Weight 8kg.