Hollings Filled Dog Bone Pork & Apple Dog TreatHollings Filled Bone Pork & Apple Dog Chews are quality air dried treats for dogs filled with a 100% natural venison flavored meat filling, sourced locally from British bones and manufactured in our own factory. The venison filling can tempt any dog into giving these bones a good chew and nibble which can help rub plaque and tartar off their pearly whites. Bone filled with pork flavor and apple, provides hours of play and chewing for all dog breeds