Durable, natural rubber retains shape and stands up to tough chewing. Specifically Designed for Dogs: Chew King Mint Dental Chew, the perfect toy for dogs who loves to play. The softer material is more comfortable for teeth and gums, and the Mint scent will help dogs keeps mouth fresh. This toy is also built with deep grooves that help clean their teeth as they chew. Safety air vent protects your pup, keeps happy tongues from getting stuck. Top dishwasher safe. Clinically proven to remove plaque! Stimulates gums and cleans between teeth!