When finished the puzzle is 18" x 24"! Puzzle pieces are made of strong, high-quality board that will not tear or break. 24 sturdy big pieces are easy for little fingers to put together and take apart. Printed with soy-based inks. Encourages hand-eye coordination, fine motor skills and problem solving. Can you find activity included for child and adult interaction. Inside cover includes a guide to learn shapes, colors and numbers