The 4 Wheel Dolly, made especially for the Vac N’ Blo. The dolly is designed to adhere to the bottom of the Vac N’ Blo so you can pull it with you as you move around your vehicle or garage. The coated metal frame and heavy duty plastic wheels make the dolly virtually indestructible. And it’s lightweight, so you can still carry the Vac N’ Blo. If you want to remove the wheels temporarily, just pull the dolly off; its attached by strong VELCRO® brand fasteners strips. Metro Vac just made a great product even better with the Vac N’ Blo 4 Wheel Dolly.