Enchanted Forest Stacking Blocks by Manhattan Toy Company

"Enjoy so much more than stacking with this one-of-a-kind block set. This 12-piece set includes 6 wood blocks, each with a colored acrylic panel and 6 coordinating wood shapes (star, circle, triangle, square, heart, and oval). There are many ways to play - stack, sort, and practice color, number, shape, and animal recognition! Each block has a unique feature or illustration on every side - a drawn number, an animal or plant pattern representing a numbered quantity, a woodland scene, a shaped cut-out, and a transparent colored acrylic window. Blocks nest inside one another for compact storage. This unique block set encourages motor skills, cause-and-effect learning, problem-solving, cognitive, and language development." For Ages 1-3 years