The Quantum Storage Systems M2048BD is a durable and versatile dolly designed for par-level storage and exchange cart systems. With dimensions of 20" x 48" and 4 - 5" swivel casters, it allows for easy movement and maneuverability. The inclusion of casters adds flexibility by converting stationary units into mobile units, enhancing storage and transportation options. The dolly's strength and ability to handle heavy loads make it an ideal solution for efficiently managing items in various settings.