Optical copy pad size is 26x19 CM/10.2x7.5 inch, it is made of acrylic, good toughness, not easy to break, high visibility and strongly reduce shadows, Optical drawing board can reflect the image on the smartphone then project to drawing paper. Please note that the projection effect on the front and back of the drawing board is different, please use the front, Widely used drawing board is suitable for all people, adults, amateurs lovers and art beginners. You can use it to practice calligraphy, learn to draw, draw on T-shirts and canvas bags, etc., The adjustable stand design makes it easy to find the most suitable viewing angle for phone or tablets. This drawing board is suitable for various scenarios, such as drawing, painting, shadow drawing, tracing, and copying, You can choose an image of your faves, and turn the image into a sketch, and then you can start creating your artwork on drawing board. (Note: Please tear off the protective film on both sides of the lens before you use it.)