Ideal for storage and quick retrieval of assembly components. Four shelves, each with six compartments, rotate on an independent central metal shaft. Shelves are 19-7/8" in diameter, 2-1/8" deep, and can hold up to 75 lbs. each (300 lbs. total). They are constructed of heavy-duty structural foam to hold tools, parts, and equipment. Industrial-strength wheels provide easy movement. Mobile storage unit can easily be taken with you as you move to different work areas. Measures 19-7/8"W x 37-1/2"H, and takes up very little floor space. Color: Gray.