Dr. Beckmann Stain s Pen and Ink is specifically formulated to tackle the toughest pen and ink stains in a matter of minutes. This Stain can also be found in the extremely popular Dr. Beckmann Stain s Survival Kit. Also available as part of the Dr. Beckmann Stain s Survival Kit, removes over 40 of the toughest everyday stains. Important Information DO NOT USE ON LEATHER, SUEDE, ACETATE/RAYON, CARPETS OR UPHOLSTERY. Before use test for colourfastness: Apply a small amount of solution on an inconspicuous area and leave until dry. If there is no change in colour, continue following the instructions above. Always rinse d area with warm water and follow garment’s wash care label.