PRINCIDURABLE: The lens is made of high-quality PC material, which has good toughness and is not easy to break. You can adjust the brightness of your phone or tablet to achieve the desired effect of drawingOPTICAL IMAGING PE: Through the lens, you can see the picture on the drawing. Suitable for animation industry, paper, white fabric, non-woven fabric, graffiti etc. Easy to use: Open your favorite photo on your phone and put it on the stand. You can then start drawing by imitating the image projected on the drawing paper Practical: Open your favorite image on your phone and convert it into a sketch, then you can start drawing. You don't need to print photos, it's eco-friendly and energy saving Durable: The lens is made of high-quality PC material, which has good toughness and is not easy to break. You can adjust the brightness of your phone or tablet to achieve the desired effect of the drawing PAINTING SKILLS: Helps develop hand-eye coordination and basic drawing skills. Suitable for kids, beginners, manga and anime lovers