• Interactive Learning System Level 2 PJ Masks. • This interactive, activity book talks, sings and comes to life. • 30+ repayable activities. • Key skills covering the Nursery fundamentals of Memory Skills, and Life Science.• To enable sounds, this book requires the LeapStart 3D Interactive Learning System (sold separately). This interactive activity book talks, sings and comes to life with your favourite characters. Includes 30+ replayable activities and key skills covering the preschool skills of math, measurement, and critical thinking. To enable sounds, this book requires the LeapStart 3D Interactive Learning System (sold separately). Additional details: Packaging size: 188mm x 174mm x 18mm Recommended age: 3-6