Are you looking for a versatile writing surface for your classroom or office? Look no further than these ceramic boards from WRITE MARK or ALTOP! Measuring 4×3, these boards are available in both white and green options. The white board provides a smooth surface for writing with markers, while the green board is perfect for use with chalk. With their durable construction, these boards are sure to last for years to come, providing a reliable writing surface for all your needs.