Holbein Artist Watercolour Ox Gall 60ml

Description:

• Holbein Watercolour Ox Gall Medium is an artist grade wetting agent that improves flow and enhances wet-on-wet watercolour techniques.
• It also improves the acceptance of watercolour on paper, particularly hard sized papers.
• Comes in a convenient squeeze bottle with a flip-top lid.
• 60ml 
• Model no: W475