The Outward Hound Tough Seamz Cobra is super tough and super cute. It is designed specifically for tough chewers and is made with a layer of Chew Shield and extra strong and tear-resistant seams for maximum durability and support. The various sounds and textures create a multi-sensory experience, sure to entice your dog. They are stuffing free and contain Invincible squeakers that keep squeaking even when punctured so the fun doesnt end!