Koh-I-Noor Hardtmuth Waterproof Drawing Ink 20g x 6 Bottles £6.95 Quantity: at £6.95 each Add To Basket Koh-I-Noor Waterproof Drawing Indian Ink is intended for hobby painting and drawing. The product is suitable for drawing on tracing paper and drawing paper with a nib pen or paintbrush. The ink is not suitable for use in technical pens. Six 20g bottles. One each: Red, Yellow, Blue, Green, Brown & Black.