HDP N-Bone Dental Twistix Removes Plaque And Tartar Buildup Through Chewing Peppermint, Parsley And Chlorophyll Freshen Breath All Natural And Completely Edible And Digestible Wheat And Corn Free Removes plaque and tartar buildup through chewing Peppermint, parsley and chlorophyll freshen breath All natural and completely edible and digestible Wheat and corn free Wheat and Corn Free