The Mission Black Acrylic 501 Markerboard utilises an innovative reverse printed construction which provides unrivalled durability and ease of cleaning. The Perspex writing surface is highly resistant to staining, even after prolonged use. In our opinion this is the best black markerboard on the market! Mission Heavy Duty Black Marker Board – Strong Acrylic Dry-Wipe Scoresheet (50cm x 40cm). For use with Mission Liquid Chalk Marker Pens. This item is not supplied with fixing kits. Mission Marker Boards – Drywipe Scoreboard – Blackboard – 501