Set of 24 Customizable whiteboards w/dry erase sleeve & interchangeable graphic organizers + BONUS All-Inclusive. Customizable Whiteboards. Interchangeable Templates. Snap-in Marker with Eraser Cap Teacher Invented. Award Winning Dry Erase Products. Formative Assessment. Any Age/ Any Subject. Durable. Versatile. All-inclusive.Teacher Invented.BONUS-48 Markers & 24 Microfiber Cleaning Cloth Certified Non-toxic. All-in-One. Marker with eraser fits in handle of whiteboard. 48HR CAP OFF INK Interchangeable graphic organizers. Sustainable. Best Dry Erase Marker/Eraser for classrooms.