Dimensions: 3.9 X 2.6 X 2.6 inches (10 X 6.5 X 6.5 cm) Material: Squeaky creative hedgehog cat toy is made of flannelette and electronic components, high quality, materials and production process meet European and American environmental quality standards and safety requirements UNIQUE DESIGN: The squeaky cat toy in the shape of a hedgehog is designed to satisfy your cat hunting insects and keeping them on their paws EASY TO USE: Remove the plastic cord to activate the kitty toy and throw the motion activated toy on the ground before the cute animal makes realistic hedgehog sounds Function: The interactive electronic cat toy squeaks only when touched. This cheerful hedgehog is a hit with indoor cats who love to hunt insects. They'll feel like they've caught a real hedgehog and are walking around proudly with the hedgehog in their mouth, rather than throwing the hedgehog into the air The battery is not replaceable, in order to prevent cats from eating electronic components by mistake, the battery is not replaceable and the toy can make about 8000 sounds since it is turned on. In order to ensure power storage, the toy has a disposable insulating sheet. Please do not pinch the toy hard before removing the insulating sheet to avoid the separation of the battery and cause no sound.