The White Zipboard has a "blank" writing surface which makes it perfect for collaborating in: Education, Training, Sales, Healthcare, Manufacturing, Food service, Construction, Law enforcement, Engineering.... And many more! * Dimensions: 17" long x 12" high x 2-1/8" deep (open); 3-1/8" long x 12" high x 2-1/8" deep (retracted) * Each Zipboard comes with 1 Beltclip, 2 Strap Hooks, 1 Dry Erase Marker, and 1 Dry Erase Eraser. Shoulder strap not included. * See also our other versions of Zipboard ideally suited for Basketball, Football, Soccer, Volleyball, Lacrosse, Hockey, and plain whiteboard