The Magic Grooved Writing Practice for Kids Ages 3-8 by Lumikidz is a reusable handwriting book designed to help children improve their writing skills. With a grooved surface for tracing and practicing letters and numbers, this American-style writing book is perfect for young learners. The pack includes one unit with dimensions of 12.01x8.78x2.05 inches and weighs 2.54 pounds, making it a convenient and durable tool for child's writing practice.