The Dana Dolly Universal Track End Bracket holds any standard size pipe from 1 1/4" to 1 1/2", or tubing with an outside diameter of 1.66" to 1.9", and provides the proper spacing for use with the Dana Dolly Portable Dolly System. It can be supported by Baby 5/8" Pin and Junior 1 1/8" receiver stands, however Junior stands are recommended for stability.