The Edding 4085 Chalk Marker is a fine chalk marker designed for use on non-porous surfaces such as glass, blackboards, and mirrors. It features a round tip that produces lines between 1-2mm wide, ideal for detailed work. The marker contains highly opaque, water-based liquid chalk that is odourless, lightfast, and removable with a damp cloth. This pen is perfect for creative drawing at home on windows and mirrors, or for professional-looking designs on shop windows and menu boards in restaurants, bars, and hotels. The pack contains 10 chalk markers in gold. For best results, shake and pump the nib a few times before use. The Edding 4085 chalk marker is available in 20 vibrant colours. Shake and pump the nib a few times before use.