Tuff Jugs come with the ripper cap system, this self-regulating option allows 10 litres of fuel to be dumped, no hassle, no spillage in 25 seconds from a 10 litre container. Just lift the can, turn upside down and place firmly into the petrol tank. Pushing the Tuff Jug down opens the caps outlet and the internally fitted ventilation tube works in conjunction with the ripper cap to quickly and efficiently fill your petrol tank. The universal seal prevents spillage and Tuff Jug will automatically shut off once the tank is full. Lifting the Tuff Jug away from your petrol tank shuts off the ripper cap preventing any spillage of your precious fuel. Curvature suited for comfort and specifically developed for easy use even for youth rider.