The Wooden Number Puzzle by Hey! Play! is a fun classic toy to get your children engaged in learning! The puzzle set, made from smooth wood, contains the numbers 1 through 20 along with basic math signs, and even features words under each piece. The puzzle is not only a fun activity for your little one, but is a great STEM toy for learning numbers, counting, color recognition, and the basics of math! The removable pieces are bright and colorful and also help with hand-eye coordination and dexterity as kids play with the numbers and try to fit them back into the puzzle. The puzzle is a timeless toy that your little boy or girl will surely love for years to come!