Our new dog Bart loves to chase this thing all over the yard. We've had the largest sized Cuz in the toy box for several years. Even though it is too big and heavy Bart kept trying to play with it so I ordered him a smaller one. Bart loves his Cuz!! It is durable, bouncy, and squeaks really loud! Just make sure you get the right size. Bart is a Greyhound/Border Collie mix, ~35 pounds and needed the medium Cuz.