Packed with our bestselling Invincibles Squeakers, the Outward Hound Invincibles Snakes Keep Squeakin’ If Punctured. Free from all the extra fluff, we crafted these crazy-eyed characters with what dogs love- SQUEAKERS! Without the extra fluff and stuffing, dogs are able to shake tug, and play harder with squeakers that were made smarter. The Invincibles Snake features Chew Shield Technology construction and super strong seams that keep you and your pup pulling and playing longer.