The Petrol PA1001 Snaplock Trolley System is an external wheel and tote assembly that is a way to comfortably transport many Deca series bags. It attaches to special connecting brackets on the base of the bag. When not in use it folds into a compact lightweight package for easy storage and transportation. By pulling up the telescoping handle it expands the trolley to full size. The oversized quick-release button lets the user add or release the trolley with a single click.