Nylabone Durachew S Shape Bacon Flavor Souper Nylabone Online Price $35.97Regular Price $40.99 Default Title - $35.97 Quantity This product is currently sold out. Durachews are a long lasting chew designed for powerful chewers. Tiny bristles raised during chewing help clean teeth while controlling the build up of plaque and tartar. Souper size for dogs over 50 lbs.