ABS 6U310 Wheels 19inch Audio Waterproof Abs Case is a rolling case for audio equipment. It has the ability to fit 19 inch amplifiers and power conditioners, but also has the ability to fit speakers, mixers, and other components. The ABS 6U310 Trolley Case with Wheels 19inch Audio Power Amplifier Equipment Cabinet has a lockable steel frame, steel ball bearing swivel casters, and is made of ABS plastic for durability. The ABS 6U310 Trolley Case with Wheels 19inch Audio Power Amplifier Equipment Cabinet is the perfect way to transport your audio equipment in style.