The Party Tennis ball for dogs consists of 3 colorful tennis balls in white-based fabric with colored polka dots. In the center each ball has a colored band with the inscription “It's My Birthday” in various colors. Inside there is an interactive whistle that will make your dog have a great time. The product can be used to take wonderful souvenir photos of your furry friend to share with your friends. The toy is part of the Pet's Party line, a collection entirely on the theme of Birthday Party and contains everything that could make your party delicious! Cute and original: ideal for taking wonderful souvenir photos to share with your friends All the products in the line are ideal for taking funny and sweet souvenir photos of your pet in the company of his furry friends.