C.E.T. HEXtra Premium Oral Hygiene Chews (with Chlorhexidine) for Extra Large Dogs (51+ Pounds) 3 Pack (90 chews) Combines mechanical action of rawhide and antiseptic power of chlorhexidine to reduce calculus Coated with patented 10-percent (w/w) solution of chlorhexidine gluconate Made using select beefhide Give your dog at least 1 chew daily to reduce plaque and calculus Please read all label information on delivery