Teaching with felt is an excellent visual aid for shaping young minds. Felt sticks to felt without the need for glue or other adhesives. This allows children to move the pieces freely for hours of fun-filled learning and creative play. This all-time favorite not only follows the very hungry caterpillar as it grows from egg to cocoon to beautiful butterfly, but also teaches the days of the week, counting, good nutrition and more. Striking felt pictures offer interactive fun. Made in the USA. Machine washable & non-toxic