Features: - Help develop hand-eye coordination and basic drawing skills. - Lens imaging is not a projection, but observation through a lens, you can see the image on the canvas. - Support for mobile phones and tablets,you need to download the optical drawing application, put the phone on the shelf, and then you can start drawing without the need for drawing skills. Specifications: APP: PicsArt Package included: 1 x Tracing Drawing Board 1 x Clamp Notes: 1. Manual measuring, please allow 1 ~ 3mm error,thank you. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture.