The Credenza and the table are made of a durable 1 inch commercial grade work surface with melamine finish that resist scratches, stains and wear. The control button is located on the front edge of the work surface for an easy access. Voltage : 110V. The credenza features metal legs, two utility drawers, one file drawer with letter/legal filing system and three shelves, two of which are adjustable. The drawers are on ball-bearing slides for a smooth and quiet operation. The hutch for credenza offers large storage spaces and a sliding door. The credenza, the hutch and the height adjustable table meet or exceed ANSI/BIFMA performance standards. Overall dimensions : 71.1-inch(W) x 67.1-inch(D) x 68.8-inch(H). Credenza : 71.1-inch(W) x 19.5-inch(D) x 28.4-inch(H). Height adjustable table : 47.6-inch(W) x 24-inch(D) x 28-inch to 45-inch(H).