Feature: 1. ERASABLE LOCK FUNCTION: Can be used to create different thickness of lines with nails or hard objects, one button erasable design, with lock button to save the content of the painting. 2. ENVIRONMENTALLY FRIENDLY: With a 3‑6 month battery life, which can be replaced and recycled without recharging. It can provide about 100,000 writing strokes to avoid wasting paper and pencil. 3. ABSOLUTE SAFETY: The battery box is fixed with screws, not easy to loosen, avoiding children to touch. The screen may have scratches, which are caused by arithmetic and can be cleared with one click. 4. EDUCATIONAL LEARNING: Providing enough space for doodling and viewing, unleashing the imagination of your child and providing a better preschool or home learning experience. 5. EYESIGHT PROTECTION: Large screen, no radiation, no glare, Protecting the eyesight of children. Rounded corner design, super safe and comfortable for children. Specification: 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). Package List: 1 x Writing Tablet1 x Paint Pen1 x Instruction Book