We never heard or checked into a Kong Toy for dogs, that is until we adopted Cody. He loves this dog toy that you put treats in, he knows just how to use it. Our other dog, Connie, the cute rescue dog that found us in the midst of winter. One had never crossed her path either, she is still unsure how this truly works, manages to get the goods out of it though. The Kong Extreme Dog Toy, Black is very durable, lasts a long, long time. We've had Cody (he's such a good boy) for 7 years, the Kong is still going strong. Of course we had to purchase one for Connie, (she's part pit). Both Kong's are used everyday, they love getting a treat in the evening. Keeps them a little busy for a bit, as they have mastered getting the yum-yums out. I recommend them, tough, extreme dog toy our dogs love.