The Porta-Brace WHEELED CASES are for transporting all kinds of heavy loads for studio, audio, video and film equipment. The cases are designed to be used for handling gear on location as well as transporting apparatus to the job site. They are constructed of a strong ridged interior frame covered with 1,000 denier Cordura nylon fabric, with padded protection all around. The wheels are designed with long axles for good tracking.