CANT STOP SQUEAKING: Invincibles Geckos are packed with our bestselling Invincibles Squeakers which mean these Outward Hound Geckos Keep Squeakin If Punctured. NO STUFFING MEANS NO MESS: Free from fluff, we crafted these crazy-eyed characters with what dogs love- SQUEAKERS! Without the extra fluff and stuffing, dogs can shake tug, and play harder with squeakers and toys that were made smarter. TOSS & TUG: The Invincibles Geckos feature Chew Shield Technology construction and super strong seams that keep you and your pup pulling and playing longer. A lightweight construction also works great for toss & fetch indoors or out making for awesome interactive fun!. PERFECTLY SIZED FOR PLAYTIME: These googly-eyed geckos are available in 2 different sizes: Medium (contains 2 Invincibles Squeakers) and Large (contains 3 Invincibles Squeakers). STRONGER TO PLAY LONGER: We know dogs play hard- thats what makes playtime fun! The Outward Hound Geckos were made with playtime in mind and designed each Invincibles Gecko with stronger seams and stitching to keep tails wagging.