Zanies Perky Produce Mini WatermelonbA multi-sensory interactive challenge toy! Fun characters and colors with a crinkle fabric and squeaky balls inside, these toys will keep pets engaged for hours! Crinkle fabric creates interest and excitement. Removable balls create a challenge for pups as they try to get them out of the toys. Sqeaky balls create excitement and entice pets to play. When pet has removed balls, simply put them back in the toy for hours more playful fun.