- Optical tracing principle: the image is not projected onto the paper. You view the image through a lens onto graph paper, enabling tracing without direct printing. - Dual sided touchpad: the touchpad has front and back sides, and the projection effect differs between sides. For best results, please use the front side. - Flexible bracket and device compatibility: the bracket offers two connection methods, is quick and easy to assemble, and supports most mobile phones and tablets. - Smart APP drawing: install the relevant software on your mobile phone or tablet to convert pictures into sketches and start drawing right away. - Durable PC construction: made of PC material with good toughness, it is sturdy and not easy to break. No need to print images, which saves paper and energy. - Tracking toolkit for skill development: the included tracking toolkit helps develop hand-eye coordination and basic drawing skills without causing eye strain. Use scenarios: - Classroom and art education: ideal for beginner tracing, learning to draw, and translating photos into practice sketches during lessons. - Home drawing and idea development: turn photos from your phone into sketches to plan art projects or design concepts. - On-the-go sketching: lightweight setup for travel or field use, enabling quick drawing practice without printing.