Cat Toy with CAT MINT | Sisal Covered Roping on the Outside and Rattle Ball Inside This sisal covered ball will keep kitty entertained and exercising as he tries to get the feathered rattle toy out of the sisal covered cat ball. The ball comes with cat mint sprigs. Simply rub the leaves to activate the scent and then place the sprig inside the ball. Cat Mint Infused Ball, Cat Mint Sprigs Also Included! Made of Sisal and Plastic Materials 4-1/2" dia.