Features: 1.No need for eraser, just one key to instantly remove traces of painting 2.The product can recycle and save paper, each tablet can reduce the felling of three trees 3.The design of the multiplication table on the back allows children to solve problems in the game 4.The children are able to graffiti on the tablet and present unique creations 5.No bright LCD screen with clear notes, more suitable for children 6.Suitable for children graffiti, painting and arithmetic specification:Item Type: LCD Hand Writing Pad Uses: Suitable for children graffiti, painting and arithmetic Battery: CR2025 button battery Battery Capacity: 160mAh Optional Style: Blue(with Lock Key), Pink(with Lock Key) Instructions: 1. Pull out the writing pen in the indicated direction and write directly in the writing area 2. After the writing is completed, use the fixed key (move to LOCK) to lock the writing; 3. After pressing the clear key, wait 2 seconds before writing again; 4. Toggle the lock key to ON when it cannot be cleared, and replace the battery if it is still not cleared. PackageList:1 xLCD Hand Writing Pad1 x Pen