More effective than the Floating Horseshoe Strike Plate in keeping the pipe centered when driving in difficult conditions. Reduces wear and tear on the machine. Makes grappling of pipe more challenging. Works best when using a helper to position pipe in the Hammer. More pipe fencing professionals prefer the 5″ Donut Strike Plate over the Floating Horseshoe Strike Plate. Works with pipe 4.75″ diameter and smaller. Does not work with “T” post adapter.