We have a chocolate lab and she likes to chew everything up. Any time we would buy her a toy she would have it torn up in a matter of minutes. Those treats you get dogs that say long lasting chew and that it will keep you dogs busy for hours, well she has them chewed up in a matter of minites. Then someone told us about the Kong so we tried it. We put peanut butter in it because the stuff they sell to go in it is so messy. She absolutely loves that thing. When we get the peanut butter out she get so excited because she knows whats coming. Even without the peanut butter in it she loves to play with it. She'll even play by herself with it. She throws it around then runs and catches it and she will do this for hours. Sometimes she will sit down and just chew on the Kong but she still hasn't been able to tear it apart and we bought it a year ago. I would say the Kong toys are the toughest toys around.