A Stacker for the Stages - with more developmental benefits Children are initially challenged to fine-tune motor skills by placingthe easyto hold rings on extra thick stacking pole. With that mastered thechild beginsto enhance spatial logic by interlocking anyone puzzle piece to anyother; inany order. At this point, there is no wrong answer! Finally, through"solving" the puzzle sequence the child learns color and size recognition. Premium Quality Construction! The stacker pole is thicker than averagestackersmaking the stacker more durable while reducing poking hazards. Eachpuzzlepieces is cut from a single piece of wood, reducing the possibility ofbreakage. With its playful challenges through multiple stages of development anditspremium quality wood constructions the P'kolino Puzzle Stacker islikely to bea classic for the ages. P’kolino products meet or exceed US, EU, and Canadian safety standards.ProductMade in China.