Designed with Montessori principles, perfect for children aged 3+. Develop number recognition, basic arithmetic, and sequencing skills naturally through hands-on stacking. Includes 20 wood numbers (1-10) and 15 double-sided activity cards, offering 30+ play methods suitable for preschoolers to 2nd graders. Supports solo tower building, family balance games, etc., enhancing problem-solving skills, patience, and creativity. Activity cards guide progressive learning.​ Made from safe material. The Large size is ideal for little hands to grip. Beyond math, stacking irregular shapes improves fine motor skills, spatial awareness, and hand-eye coordination. Open-ended play fosters focus and resilience, laying a foundation for future STEM learning.​ Perfect for birthdays, festivals, or classroom rewards. Turns abstract math concepts into tangible experiences. Kids enjoy screen-free fun, while parents and teachers recognize its educational benefits.