Strong Precision Molded Resin Exterior 21.5” Extra Deep Interior Accommodates Power amps Threaded Front & Rear Rack Rails Heavy-duty Providence Forged® steel-plated hardware Load-Bearing, Custom Designed ComfortGrip™ Handles | Custom Designed & Formed Aluminum Valence Front & Rear Gasket Sealed Covers Protect Against Moisture & Dirt Stackable Molded Feet Mounting Screws and Washers Included |