The Audio2000'S ADC271B is a heavy-duty all metal cable reel/cord reel. The width of the cable drum is 5.5 inches. The diameter of the drum is 12.5 inches. The cable drum can hold up to 722 feet of cable with the cable diameter of 6mm (about 1/4 inches). Constructed with heavy-duty steel frame and cable drum, the ADC271B is a rugged, durable and dependable cable reel. Furthermore, the ADC271B is highly portable.