Complete with coloured dust caps to identify oils and prevents contamination: blue, green, red and yellow. Manufactured from polyethylene. Removable, flexible spout. Dust and pollutant protection screw lid spout cap to protect expensive fluids from contamination. Lid and cap also prevent drips and spillages Makes lubrication work easier, faster, safer and cleaner. Suitable for engine oil, brake fluid, battery fluid and other non-acidic fluids. 4PCS 5L Oil Jugs Set 4 different color caps Yellow, Blue, Green and Red