I had hoped to find the long lasting, indestructable toy for my labs, however, I'll still be looking. My labs had the ends off the Bumi in about an hour of chewing. I also purchased the Tux shape. That has lasted a little longer than one day but they are working on it little by little. Due to the shape, I think the Tux is little more durable. They like the toys but as in all the other "power chewing" toys, the labs get the best of them. I would recommend the Zogoflex line because the dogs liked them but if you have a real power chewer, don't expect the impossible.