The Faber-Castell Multimark Indigo Blue 450 185947 acrylic marker guarantees highly pigmented acrylic ink with a deep, dark blue tone for application on various surfaces. Suitable for paper, stone, plastic, glass, and canvas, it features a durable precision tip and a quick-drying formula that is resistant to water and sun fading. It is the ideal permanent acrylic marker for artists, illustrators, and crafts that require intense and long-lasting lines.