Universal Wire Accessories (fits Round and Square Post units): Dolly Base; dimensions: 18" W x 48" L

Universal Wire Accessories (fits Round and Square Post units): Dolly Base; dimensions: 18" W x 48" L; 2 swivel and 2 swivel casters with brake 6" x 2" polyurethane plate casters; corner bumpers; stainless steel runners and cross members provide extra strength