This Huqvarna Combi Can holds 5 litres of petrol & 2.5 litres of chain oil. The petrol can has an effective overfill protection. When the tank is full, the flow is automatically shut off & you can lift the can up without spillage. The cans can be separated from each other. There is a space between the cans for files & tools. This Combi Can has been approved by the Swedish National Testing & Research Institute in accordance with UN recommendations.