Easy to use for Anyone No worry about that your kids don't know how to use it.This tablet just like using a pen and paper as usual.The8.5" colorful screen of doodle board offers enough space for graffiti,and here is one button to lock or erase screen that never worry to loose drawing/notes by sudden push on erase button and Waste paper. Colorful Harmless Digital Screen Low reflection colorful digital screen without glare and bright writing for Eye Protection.No blue light,avoiding injury to childs eyes from long-term use,safe and comfortable.Not a boring single color,the colorful screen make your child's painting more vivid and interesting. Portable And DurableIt is made of good quality ABS material Small and lightweight, making it easy to be taken out everywhere. It also can make your child sitting quitely and concentrate on graffitiing by themselves while you are driving a long car rides or any situation that you can do your own things without worries. Multipurpose For All Kind people It is not only suitable for child who is need the pre-school education and practice math sums, doodling, or practicing spelling, but also suitable for the people at home or office as a tablet to make a to-do list ,memos or messages. Safe setting of replace batteryThe battery is replaceable.The setting of replacing a new battery is easy for adults but difficult for a kid.You have to TWIST the battery cover to the "OPEN"side because it is tight,which is safer for a kid that you don't need to worry about them swallowing parts.