Welcome to our store! ERASABLE LOCK FUNCTION: Create lines of varying thickness using nails or hard objects. Features one-button erasing and a lock button to save your drawings. ECO-FRIENDLY: Battery lasts 3-6 months and is replaceable and recyclable, no recharging needed. Provides approximately 100,000 writing strokes, avoiding paper and pen waste. ABSOLUTE SAFETY: Battery case is secured with screws, preventing easy loosening and access by children. Screen may have scratches from arithmetic, which can be cleared with one click. EDUCATIONAL LEARNING: Provides ample space for doodling and display, unleashing your child's imagination and providing a better preschool or home learning experience. EYE PROTECTION: Large screen, no radiation, no glare, protecting children's eyesight. Rounded corner design, super safe and comfortable for children. Item Type: LCD Writing Tablet Material: Plastic, electronic components Size: Approx. 23.5 x 15.5 x 0.5cm / 9.25 x 6.1 x 0.2in Battery: 1 x 3v 75mAh CR2016 button cell (built-in) 1 x Writing Tablet 1 x Stylus 1 x Instruction Manual Customers are our top priority. If you find any problems with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best after-sales service.