size:【Large Ring】— The outer diameter is 11.8 inch/30 cm, and the thickness is 2 inch/5 cm,Weight: 0.47 lb ,Suitable for medium and large dogs Tear resistant elastic EVA material:Our large dog ring toy 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 toys to help dogs develop. Good chewing habits. Water Toy: This fitness ring toys is water floating, it is not only great on the land, but also can be played in the swimming pool, river or lake. Build 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. Colour Name:Yellow Size Name:Large Ring(Medium & Large Dog) Inner