HOL-EE GIGGLER is the next level Hol-ee Roller with exciting sound. With the unpredictable giggles, your dog’s instincts will kick in and keep him engaged in mentally exercising play. Hol-ee Giggler is designed to enrich playtime by stimulating auditory senses through new, fun sound that goes beyond the common squeaker! Keeps your dog mentally engaged. Stimulates auditory senses.