Compatibility: This ball dispenser is compatible with balls that have a diameter of 6cm. Ball Dispenser: Get an automatic pet ball dispenser today! Gifting: Perfect for puppies and old dogs learning new tricks. Options: Choose between 3 different colours, grey, green, or orange. Fetch: Keep your dog entertained all on their own, your dog can place the ball in the dispenser and then chase after the ball as its rolls out. Treats: Provide rewards for your pet as this dispenser also features an automatic treat dispenser before you leave fil up the dispenser with treats and then every time the ball is returned treats are released. | Automatic Pet Ball Dispenser | Wowcher