It is adopted with high-tech soft LCD screen; enable you to write smoothly with a slight stroke. The heavier you write, the line will be thicker. The body material is safe, non-toxic and non-radiative. Lock the erase button to prevent accidental deletion. Don't worry about losing your big ideas any more. Please notice that the erase lock button is on when you receive the new package. This electronic writing board can cultivate children's creativity and let them freely use their imagination to draw and doodle! Built in sealed button battery(replaceable), it can work long time with write 50000 times . The 0.183kg weight and 12inch size of mini LCD drawing board would make it easy to take in a purse, scheduler, school bag or backpack, which make it easy to be carried out everywhere. And you can use the writing tablet everywhere and anywhen you like.