Abstract: A coupling for use with a conventional weight rack having a first wall, a second wall and an intermediate wall that together form an open channel, a pivot pin extending orthogonally from a pin portion of the first wall towards the second wall and a releasable pin tethered to the coupling and sized to be received through aligned apertures in the first wall and second wall. Upon insertion of the releasable pin into the aligned apertures, the releasable pin and the pivot pin are spaced apart one from the other. Both of the pivot pin and the releasable pin are sized to be received into apertures in an upright rail of a conventional weight rack. The exterior side of the intermediate wall may be secured to a wide variety of weight rack accessories.