3 years and up. Make an imaginary forest with the Woodland Trail Treehouse and Woodland Trail Accessory Set. This fun playset places an entire ecosystem at children's disposal. Children can use the Woodland Trail Accessory Set to make a multilayered forest in the Treehouse, or they can use the Woodland Trail Accessory Set to create an expansive forest with trees, animals, toadstools, and more! No matter what, this set will cultivate creativity and inspire imagination.