The 3 RU <b>SKB iSeries Injection-Molded 13" Fly Rack</b> is a rolling flight- and shipping-friendly rack case designed to house rack-mountable equipment for musicians and audio engineers on tour and in studios, live stage applications, and mobile-recording setups. It features threaded rails in the front and back with a 13" rail-to-rail depth. TSA-compliant, trigger-release latches provide dependable closure and can be secured with a padlock (available separately).