Treat Ringer Toys are new chewing challenges for dogs of all sizes and ages. Made from extremely durable nylon, they are great for power chewers. There are four shapes with different challenge ratings to choose from for easy to more challenging play. Each comes packages with Edible Treat Rings. Edible Treat Rings are made in the USA and one size fits all Treat Ringer Toys. Toys are dishwasher safe for easy cleaning.