3M Post-it Super Sticky Dry Erase Surface DEF6x4 4 ft x 6 ft (1.21 m x 1.82 m) 6 per case

Transforms painted dry wall, glass, painted steel, finished wood or even old dry erase and chalk boards into a dry erase surface. Stain-proof technology erases cleanly every time. High-performance surface allows for smooth writing.