Multi-color, blue and green, hide-a-ball puzzle toy. A fun, interactive toy that will keep your dog busy. Ball pouch with plush balls stuffed inside (each with a squeaker). A few also have crinkle paper! Improves mental & physical skills. Dogs love digging out each squeaky reward! Small: 10 - 2.5" balls inside. Large: 8 - 3.5" balls inside.