I have enjoyed watching my lab, now 13 months with several of the toys. At about 6 months he chewed through the zisc in about an hour, which I sent back for the refund. He has enjoyed the Hurley as has his dad, who put the first bite into it. We have now gone the last month has a favorite fetch and chew toy, but alas it may be retired has one end is gone. As they are non toxic and made in the USA, I am online to purchase a new one.