Sparco Lap Board, 8" x 11", 24/BX, White (SPR99818) Box of 24Durable dry erase boards feature both a blank surface and a ruled surface to help your students develop a wide variety of skills in the classroom. Plastic frame around each board provides a secure, comfortable location to grip each board. Magnetic surface works great with magnetic erasers, markers, letters and more (each sold separately). Dry erase boards are perfect for practicing writing, math problems, doodling and more. General Information