The Standard Unit Blocks by Melissa & Doug come in a set of sixty smooth-sanded hardwood blocks which feature a natural finish. These blocks not only encourage creativity in your child but hand-eye coordination, part-to-whole relationships, simple cause and effect, and team work concepts as well. Children learn to re-create scenes from their favorite books, fairy tales, movies, and their own imaginations as they assemble these classic blocks into striking visual structures. Appropriate for ages 3 and up, this is a building toy that can grow with your child. The included wooden storage crate provides easy storage, clean up, and transport so that your child's favorite blocks are always ready for the next playtime.