1. For business people, designers, engineers, teachers, students and doctors, etc. useful and environmental-friendly.
2. As a family message board to deliver your love to your family, can be placed on the table and desk.
3. Class notes, drafts, and scientific equations to solve mathematical problems.Good helper for students.
4. Easy to cultivate children's writing, calculus, painting abilities, learn with fun.
5. Light and easy to carry, and can be recycled, let deaf people communicate easier.