CET Chews Medium 11- 25 lbs 15 Chews Chews are made from select beef hide. Antibacterial system and time-tested Dual-Enzyme System to control plaque and eliminate bacteria buildup. Easy to chew and digest. Basted with a great poultry flavor dogs love! Chews can be fed as a treat once a day (on non-brushing days) or as directed by your veterinarian.