Patented chewy bones in the ribs: pork and beef skin with chicken breast fillet around it. Keeps your pet happily active, ensuring long-lasting chewing pleasure. Helps control tartar build-up and plaque formation. High in protein, free of artificial sweeteners, flavour enhancers, GMOs and artificial preservatives. Ingredients. Protein 53%, fat 2%, crude fibre 0.3%, crude sugar 2%, moisture 18%.