The Best Friend Pure filled rolls are made of natural premium cowhide. Due to their size and texture (medium bite), these filled rolls are an excellent choice for medium-sized and large dogs with a moderate bite force. Since cowhide is the only ingredient of animal origin, the product is also suitable for dogs with allergies. Regular use of chewing products helps maintain tooth and gum health and prevent bad breath. Chewing products also make for excellent entertainment and effectively invigorate your dog during dull moments while stimulating the natural chewing instinct.