LP LCD Writing Tablet with Stylus, Office Writing Tablet Small Blackboard,8.5-Inch(Black) Paperless: With 8.5 inch LCD screen, you can draw everything to show your imagination or education content. A key to clean: Erase your image with the touch of a button. Built in 3V coin battery (replaceable)never need to charge. Clean by one button and write over 50000times. Good helper for student: A best tool for learning a new language and day-to-day performance. For All Ages, Stylus Included. Portable & Safe: The case and LCD are made from durable plastic materials, safe for school use and all around the office, house, and car. Writing experience is comparable to pen on paper