The 6" diameter casters, each rated up to 600-lb. capacity, keep the Matco Tools MSC12 Service Cart rolling right over air hoses and uneven shop floors. The fully-welded MSC12 has over 12,000 cu. in. and 2,500 sq. in. of lockable tool storage. The cart offers three drawers, a 7" deep sliding top and rear storage for pry bars, screwdrivers, hammers and air tools. A three-drawer add-on is available with multiple drawer options to customize storage. Thirteen paint color options and five trim options offer 65 color-trim combinations.