PetSafe Busy Buddy Joint Support Treat Ring Refills - Size B (3 Pack) 36 Treat Ring Refills (3 Packs with 12 Rings per Pack) 3.8oz Packages Made in the USA Dental health formula helps remove plaque and prevent tartar buildup for cleaner teeth and fresher breath Grain free with irresistible natural chicken flavor Fits Busy Buddy toys that hold size B treat rings