HST Foam Fitness Ring 18cm Is made from EVA Material. The foam fitness ring is soft and stretchy and can be a lot of fun for your dog. You can throw it for your dog to catch, fetch, pull, tug of war etc. Made of lightweight material it is harmless for teeth and gums, it can float on the water, and has many diverse ways to play. The HST Foam Fitness Ring 18cm is made in Czech Republic