Made of polyethylene plastic, these four jugs are resistant to corrosion and can be used for a wide range of automotive and industrial fluids. They come with coloured caps – blue, green, red and yellow – to enable easier identification of contents and to prevent contamination. The jugs have an easy-to-open screw cap, a flexible spout with a lid and a tight-closing filling flap to keep out dirt and dust. There are clear markings in both quarts and litres.