Features: Students and children's good helper, class notes, drafts, scientific equations to solve mathematical problems, easy to develop children's writing, calculus, ability, simple, clean, interesting. Suitable for many occasions, light weight, easy to carry, reusable. The product supports one button lock screen, one button clear screen function and low consumption. The use of the product is very convenient, no need for ink, energy saving and environmental protection. Products without radiation, harmless to the body, can be used safely.Specifications:- : Black- Material: ABS frame- Font: font- Display:8.5 inch/ 10 inch/ 12 inch LCD screen- mode: CR2025 button (built-in)- Cleaning: please wipe gently with a cloth- Functions: writing, drawing, one - delete, font- Product size:22.5x15x0.5cm/8.6x5.9x0.2''(8.5 ")/25x18x0.5cm/9.8x7.1x0.2''(10 ")/ 28.5x20x0.5cm/11.2x7.9x0.2''(12 ")Packing Included:1x Writing Pad1x PenNotes:1.The real of the item may be slightly different from the pictures on website caused by many factors such as brightness of your and light brightness.2.Please allow slight deviation for the measurement data. a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a