Assorted case (3 of each color). Mini Metro Balls® are the perfect colorful addition to your toy department, cash wrap, and cat department. Smaller than a standard tennis ball they are perfect for smaller dogs and cats love them. Unlike regular tennis balls, Mini Metro Balls® are specially designed for pets ,made with cotton yarn and natural rubber, and no toxic gas. Each package contains 3 color coordinated balls with 5 color options available. Mini Metro Balls are also a great way to add value to your gift area and make a unique hostess gift or pup birthday present.