The Gator GR-Rackbag UW series case are lightweight rolling rack bags that are great for effects processors recording equipment and sound modules. They feature a retractable tow handle and wheels that make for easy transport through airports bus terminals and inside venues. They are ruggedly constructed handsome and extremely portable and do a great job of protecting your equipment and your back at the same time. Polyethylene-reinforced interior frame Internal reinforced aluminum valance Retractable tow handle & recessed wheels Ergo Grip Carry Handle Rear flap allows access to entire panel of equipment 600-Denier nylon exterior Exterior pocket for cables etc.