Abstract: A socket member for mounting in the upper surface of a platform includes two O-rings or other resilient retaining members. The socket member defines an elongate bore into which a rod is inserted. The O-rings serve to locate the rod, accommodate any tolerances, and ensure that the rod is not loose within the bore. The socket member can comprise upper and lower socket members which screw together. The upper socket member can be secured by a nut to the surface of the platform. The device can be used to mount mannequins, other display fixtures and the like which have rods secured to them.