WELDED, SOLID BASE, (4) 5" POLY CASTERS-2 SWIVEL/2 BRAKE. Par Cart Par Cart is used for storing medical equipments. Features -Preconfigured ORTHO CART are provided with fully extended wire shelves.. - (7) 5" wire baskets are welded with solid base. - Two (4) 5" Poly Casters, two casters, two swivel/two brake are provided. -All welded frame are tubular steel and powder coated.