My Entlebucher, Sasha, is notorious for chewing up just about every toy she receives in a matter of minutes. I purchased the Tux from an online retailer and am in love with this product! Sasha enjoys playing fetch with it. When I fill it with goodies, she will do anything I wish just to get her paws on it! I was so happy with it that I looked up West Paw Design's website just to see if they had any more Zogoflex toys! I have since purchased the Hurley, the Huck, and the Zisc and Sasha loves every one of them!! Thank you for making such a wonderful product that can withstand my little chewer!