Produced as a camellia oil applicator or Abura-Tsubo, which in effect is like a giant felt tip marker, oil soaks into the 'nib' by capillary action; simply unscrew the red cap and use to paint a thin layer of protective oil onto a metal surface. Imported from Japan, camellia oil is a natural vegetable oil that has been used for centuries by Japanese craftsmen as protection against corrosion. For practical purposes the natural camellia oil is blended with other light oils producing a low viscosity protective oil. It has a pleasant smell and used regularly forms an effective barrier against rust and corrosion. N.B. Camellia oil not included.