The Mission 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, and the board is supplied with both screw and 3M adhesive fixing kits. In our opinion the Mission markerboard is undoubtedly the best on the market. Mission Heavy Duty 501 Marker Board – Strong Acrylic Dry-Wipe Scoresheet (50cm x 40cm). Includes a fixing kit. Mission Marker Boards – Drywipe Scoreboard – Whiteboard – 501