Unlike a traditional tool bag that has a shoulder strap, the C6T Backpack & Trolley can be worn as a backpack but then can be quickly transformed into a trolley. Designed for the professional tool user who wants to stay mobile, the C6T features a spring-loaded telescopic handle that ejects with the push of a button, backpack straps, interior removable tool panels, a large interior Velcro pocket, strong casters, two outside pockets and a rubberized bottom. The C6T also features heavy-duty construction and industrial strength zippers.