The transparent glass plate is made of high quality acrylic material, which has good toughness and is not easy to break. The drawing board uses the principle of optical imaging. Through the glass plate, the images on the drawing can be reflected for easy tracing. Ability to open your favorite photos on your phone and convert them to sketches, then you can start drawing. The stand is easy to assemble and can support most commonly used cell phones and tablets. Helps develop hand-eye coordination and basic drawing skills. Drawing projector with acrylic, 20*13.5CM Optical drawing board sketch tool helps to develop hand-eye coordination and basic drawing skills to protect the eyes. Suitable for children, students, adults, beginners, anime lovers, amateur painting lovers. Principle of the optical image The image is reflected and projected onto the optical projection drawing board. At the same time, the lens has two sides, the projection effect is different on different surfaces. Warning: Before use: Tear off the protective film on the front and back of the board. Brightness of the image: it is better to see the lines clearly. Use in a well-lit area. Reduce the brightness if you feel uncomfortable. Make sure your paper is level with the bottom of the support. Protect the board: put it back in the bag after use.