The writing board has an easy-to-read LCD display can write colored letters with the supplied pen Delete quickly with the push of a button and lock with a slide switch A practical one funny original but also a simple writing board it is also fun for children as a magic drawing board or magic board Say goodbye to paper HOMESTEC digital drawing board is 159g Writing surface is 175 mm x 125 mm In our opinion, 8 5 inches is ideal for carrying in a backpack For one-time spontaneous notation / drawing etc is ideal good for saving paper and also extremely practical for the desk and for on the go The display is powered by a CR2016 button cell battery No additional electricity is required for the writing process and hardly uses any electricity