5.5" Big Doggy SqueakEasy Fleece Ball by RetailPets Distribution [rep-PQ-P21] 5.5" Fleece ball that makes a noise similar to a mouse squeaking or small bird chirping when the ball is rolled, thrown or shaken. Lots of soft, squeaky fun and no batteries required. Long lasting fun . The sound device is covered with a double wrap of fleece for durability. Price: $7.99