This tire swivel has 3 prongs to help prevent chains from tangling. Our commercial tire swivel a rubber boot to prevent fingers from being pinched. The plate is 4 ½ ” x 2 15/16” with four 9/16” holes that are 3” x 1 9/16” center to center. It hangs down 8 1/2" from pipe. Powder coated in a bright red finish.