Mixer 1/4 Light Duty ATA Case for Allen and Heath Mix Wizard or Qu-16 12 Space Tapped Rails - Tapered Blocks (3 Inch High in Front & 9 Inch High in Back) - OD 21 x 23 x 11 High 1/4 Inch ATA Light Duty Plywood Construction - Black PVC Laminate Exterior Aluminum Bound and Riveted Extrusions - Steel Flat Corners - Rust Resistant Hardware 4 Spring Loaded Recessed Catches - 1 Spring Loaded Recessed Handle Carpet Lined Interior