The JW® Pet Treat Tower is a cutting-edge playful learning activity and treats dispensing toy. This playful learning activity toy has a tough nylon frame with creatively styled openings. Suitable for a variety of treats. Simply insert the treat in the top and they randomly come out the bottom as a dog works to release them. Holds up to rugged play and the difficulty level can be adjusted to make it more challenging as a dog learns. Available in two sizes to accommodate most size dogs. The small size is recommended for small and medium-sized dogs while the large size is recommended for medium and large-size dogs.