Pet Ball Hollow Design Built-In Fake Mouse Colorful Interactive Cat Mouse Sound Catnip Toys for Kitty. Description: For the sake of improving the interaction with pets and training them to catch mouse that you can use this ball, which has also released their pressure and energy at home. Undoubtedly your pets will use it safely due to the smooth surface and hollow design, and it will be cute and lovely in appearance with sound function to increasing interest. By making with ABS and metal materials, this ball is solid and wear-resistant to use. The diameter of the product is 11cm. It is suitable for small cats and dogs. Item Name: Pet Ball Material: PP Features: Hollow Surface, Sound Function, Training Size Details: Diameter: 11cm/4.33" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Pet Ball