For "3 year old work Kazu", you can enjoy learning numbers and numbers up to 5. Diverse and motivated problem structure. Forty-six questions are formally organized, and you can enjoy learning from the beginning to the end. Full accessories! There are many ways to motivate your child, such as stickers and certificates of commendation. B5 size ( W182 x H255mm ) Walnut Bookmaking 46Page ( Full Color )