Tear resistant elastic EVA material:Our large dog ring is soft and stretchy, can be used to train dog’s reaction throw, catch, fetch, pull, tug of war etc, which are harmless to teeth and gums, and can also be used as dog molar to-ys to help dogs develop. Good chewing habits. Water To-y: This fitness ring is water floating, it is not only great on the land, but also can be played in the swimming pool, river or lake. ild Relationship: This Pet Agility Set Can Help To Nurture The Relationship Between Pet Owners And Pets While Teaching Them New Tricks, Benefits Both You And Your Pets. Humanized Design: This product is designed with a ring and has no sharp edges, don't worry that your fingers will be scratched; and it's very easy to clean, just wipe it with water or a rag. Multifunctional Use: Not only can it be used for training dogs on land, such as throwing, receiving, taking, pulling, tug-of-war, etc. But also for floating on water