This Wire Shelving is mobile for easier moving. The Polymer Cart can Hold up to 1000 pounds to hold more items. The Wire Shelving has vented shelves so items can be cooled. The Polymer Cart is 48 x 24 x 63 (L x D x H). The Wire Shelving is made of dishwasher safe polymer material. Four 5"Dia. swivel casters with bumpers (2 lock), (16) collets, (4) posts are included.