... :Certificate:ROHS,NSF 4:Good price,best service stainless steel adjustable storage shelves and racks Specifications: 1:Our stadard dimension:( W ... 10:we can supply single or many layers with four wheels for your reference . Stainless steel rack and shelf ,Metal shelf ... , every layer height is adjustable. You also can add some accessories, such as V-hooks, pipes, handle, wheels, to be coat hanger ...