Introducing a new way to squeak! JigglerzTM are made with Zippy Paws exclusive Jiggler noisemakers that squeak when shaken! Added crinkle paper inside head and tail makes them even more fun for dogs. Each toy is lined with an extra layer of tough Cordura material and cross-stitched for durability. No stuffing. Ideal for medium and large size dogs but fun for dogs of all sizes. Always supervise playtime.