This extra heavy duty, flat mount swivel swing hanger for tire swings. This swing swing hanger is designed for use on wooden swing set structures. Design features include rubber boot over a universal joint, grease fitting for easy maintenance and a three point mounting system to help reduce pinches and tangles. When installing any swivel tire swing hanger it is recommended a double clevis connector is used to attach the swing chain to the swing hanger and tire swing rather an "S" hook. Also tire swing require and extra long 8' swing chain rather that a standard 5'6" swing chains used for standard swing seats. Top Plate included.... Mounting bolts,washers and lock nuts not included.