The Sank Magic Practice Copybook Set is an essential tool for preschoolers to master number tracing and simple hand lettering. This set includes 4 reusable books and 10 refills, making it a practical and long-lasting resource. The magic calligraphy copybooks come with a special pen, allowing the ink to disappear after drying, so kids can practice repeatedly. Designed with a spiral-bound format, these copybooks are easy to use and perfect for young learners. This comprehensive set promotes effective learning and fine motor skill development in an engaging and fun way. Model 11.