Eye Protection This toddler doodle board adopts LCD pressure-sensitive technology and 8.5 inch LCD colorful screen, without radiation, no glare. It's time to reduce the time kids use keyboards and phones. Screen Lock The lock key can freeze the content to avoid accidental erase the screen so that it ensures continuous writing or drawing, you can still erase the content after unlocking to ensure a good writing experience. Save Paper Use erase button to clear screen content, so that reuse it many times. In this state, a ton of papers can be saved from wasting. Not only is it affordable to use, it can save trees with your daily actions. This LCD writing tablet is a excellent educational toy for children. You can use it not only as a children's writing board, also as a doodling board, toddler drawing board, graphic teaching aid, graphic board, and family message board and notepad.