RingThe outer diameter is 18cm and the thickness is 4cm, Weight: 0.22kg l Suitable for small dogs Puppy cat Elastic tear-resistant EVA material: our great dog ring toy is soft and stretchy, can be used to train the dog's reaction throwing, catching, fetching, tugging, tugging, etc., which are harmless to teeth and gums, and can also be used as dog molar toys to help dogs to grow. Good Chewing Habits. Water Toy: This fitness ring floats in water, not only is it great on land, but also can be played in the pool, river or lake. Build Relationships: This pet agility set can help nurture the relationship between pet owners and pets while teaching them new tricks, which benefits both you and your pets. Humanized Design: This product is designed with a ring and has no sharp edges, don't worry about your fingers being scratched; and it is very easy to clean, just wipe it with water or a cloth. Color Name: Yellow Materia: Non-toxic EVA (copolymer ethylene-vinyl acetate) Package includes: 1 * fitness ring This great dog toy is eco-friendly and non-toxic , it is gentle on the dog's mouth and the dog owner's hand. It is strong and durable enough to play all kinds of interactive games. Ideal for developing the dog's muscle group and reduce dog's anxiety and aggression.