Take a look at the Nylabone 101 video above, and if you have an extra minute, watch Paige the wonderdog save Dexter's bacon with Nylabone! Very cute.
 
The Nylabone® FlexiChew dog bone is a soft, chewy dental bone that is clinically proven to reduce plaque and tartar build-up. These flexible chews are perfect for moderate chewers - made with softer material so gentle chewers can enjoy a bone of their own. The FlexiChew features chicken-flavored particles  embedded throughout the bone to encourage healthy chewing behaviors. Made in the U.S.
 
Five sizes
    Petite: up to 15 lbs.  3-3/4"
Regular: up to 25 lbs.  4-1/2"
      Wolf: up to 35 lbs.  5-1/2
     Giant: up to 50 lbs.  7-3/4"
  Souper: over 50 lbs.  8"
 
Always supervise your dog's use of toys