Nylabone Bacon Flavored Variety Pack is veterinarian recommended. Includes Nylabone Durable & Healthy Edibles. Be sure to select the right chew and size for you dog's chewing style. Different dogs have different chewing styles, even within the same breed. One may be a strong chewer and another more gentle, preferring a softer chew. Bristles raised during chewing help clean teeth and the cleaning action helps control plaque and tartar build up. Nylabone Healthy Edibles provide a healthy alternative to rawhide and processed animal parts. Natural white calcium may appear on bone surface and does not affect product quality.