An exemplary embodiment of a caster adapter includes a connecting base for coupling the caster adapter to a caster, at least two panels forming at least part of an adapter member and defining the interior of the adapter member wherein at least a portion of a leg of an object is insertable into the interior of the adapter member. The adapter member may contain a leg conforming portion that protrudes outward from the interior of the adapter member and corresponds with a leg protrusion on a leg of an object wherein the leg protrusion will fit within the leg conforming portion such that the object may be lifted off the ground without the caster adapter, and coupled caster, slipping off of the leg. The leg may be inserted into the caster adapter through an opening in the side of the adapter member, wherein the opening is blocked by the use of at least one containment member interacting with the adapter member. The leg conforming portion may be customized depending on the leg protrusion location and size on the subject leg. The containment member not only acts to retain the leg within the caster adapter but also allows for quick release of the caster adapter from the leg. The adapter member of the caster adapter is customizable to fit various geometries of legs. The containment member may be retained in proximity to the caster adapter through the use of an attachment member that is attachable to the adapter member and the containment member.