【Optical Imaging Principle】The reflection allows you to trace or draw any masterpiece more easily anytime. It is an optical image drawing board, works with tablets and smartphones allowing you to set up a drawing projector on the go! 【Adjustable Brightness】You can adjust the brightness of your phone or tablet to get the desired effect of the drawing picture. Comes with 4 brackets to keep your drawing process stable and smooth. 【Use Manual】1. Choose photos; 2. Convert pictures into sketch line drawings, or not for color pictures; 3. Mirror the picture in the phone or tablet; 4. Place the phone or tablet flat on the table, place the board on the two brackets. (For details, please see detailed description.) 【Ideal Tracing Tool】This tracing board kit is suitable for children, kids, students, adults, beginners, anime enthusiasts, amateur painting enthusiasts. You can paint on paper, clothes, bags and so on, no harm to your eyes. 【Satisfaction Guaranteed】We’ve built our products to last. Our customer service is online 24 hours a day and when customers find that our products are in trouble, you can contact us to discuss the best solution, and we also provide a technical support service, dedicated to the customer's good experience.