At Fenway Bark, we consider every furry friend a part of our family, encompassing the same love, creativity, and community spirit that make our daycare a haven for dogs and their humans. Metro Balls® are the perfect colorful addition to your pet's toy box. Unlike standard tennis balls, Metro Balls® are specially designed with your pets in mind. Made with natural rubber and cotton yarn, they have ZERO petrochemicals, making them a better choice for pets! Metro Balls® are 2.5" in diameter, (Mini balls are 2") comparable to made-for-human tennis balls, ensuring endless fetch fun and safe playtime at Fenway Bark. Colors Vary.