BOOGIE BOARD Paperless LCD Writing Tablet - GOLD Erase your image with the touch of a button and a friendly flash from the liquid crystal display. Sealed 3V watch battery never needs replacing. Ultra 1/8" thin and is easty to take with you in a purse, scheduler, briefcase or packpack. Case & LCD are made from durable plastic materials. Pressure sensitive writing surface creates lines of different thickness based on how hard you push.