Offex Rolling 16-Inch Tuffy AV Cart 2 Storage Shelf with Putty Legs, Electric, 4-Inch Heavy Duty Casters - Black (OF-WT16E) 1/4" safety retaining lip and a raised texture surface to enhance product placement and ensure minimal sliding. Four 4" silent roll, full swivel ball, heavy duty 4" casters two with locking brake. Electric: 3 Outlet 15ft Cord Included. Color: Black. 18"D x 24"W shelves 1 1/2"thick. Legs are 1 1/2" square.