The glass sheet is made of high quality acrylic + ABS material, good toughness, not easy to break. You don't need to print pictures, environmental protection and energy saving. Features: The principle of optical imaging, you can see the picture on the drawing at through the lens, the touchpad has two sides, and the projection effect of the two sides is different. Easy to useOpen your favorite photo on your phone and convert it into a sketch , which is very convenient. With an adjustable stand that is simple to assemble and supports most cell phones and tablets. Wide range of uses: you can paint on paper, clothes, bags and so on , to create your own works of art. Suitable for kids, adults, comic book lovers, beginner artists. Multi-Function: Helps develop hand-eye coordination and basic drawing skills without damaging eyes. Suitable for children, young painters, young artists, animation industry, etc.