Winsor newton colorless masking fluid 75 ml. Easy to use. Used for art & craft purpose. A colourless, non-staining liquid composed of rubber latex for masking areas of work needing protection when colour is applied in broad washes.do not apply on damp or soft sized paper.remove as soon as possible after application.brushes can be cleaned if washed immediately with water after use. Durable working. 1 pcs only.