The KONG(R) Ring is designed for long lasting chew sessions offering enrichment and satisfying a dogs natural instinct to chew. Made from KONG natural red rubber, the KONG Ring provides ultra-durability and added nubs to give your dog a delightful chewing experience while promoting healthy teeth and gums. Enriching, durable toy supports appropriate chewing behavior. Promotes healthy teeth and gums. Made in the USA. Globally Sourced Materials.