PetFavorites&Trade; Original Mylar Crinkle Balls Cat Toys Funny interactive cat toys or cat Exercise toy, to calm down your cats in spring Made of soft & lightweight mylar texture in bright metallic colors You Kitten will go crazy with the cat ball toy that makes crinkle sound when playing Measures 1.5 inch width balls, easy for cats to bat, chase and pounce Brand: PETFAVORITES. Package is a Set of 6: 2 purple/green ones, 2 red/gold ones, and 2 green/gold ones.