The Alvin Rack & Go Mobile Storage Cart WRASB is a durable mobile wire shelf made of black plastic-coated heavy-gauge steel rods with welded shelf supports. There are 6 shelves, measuring 14”L x 15½”W x 5½". This studio organizer can be folded away when not in use-- the hinged frame folds down to just 4 inches, making it highly portable, too. When set up, this mobile organizer cart measures 14”L x 15½”W x 32”H, with a weight capacity of 35 pounds. You can move it easily from room to room on 4 swiveling wheels, 2 of which lock for stability.