The basics “Default DOWN” Retractable Fangs are always showing until you hide them by biting down. You can show off your fangs and quickly hide them before surprising unsuspecting humans… The benefits Easy to use, comfortable to wear, talk naturally, activate or hide them when you want. From the most trusted brand, #1 in the world since 1993. The uses Fully Functional Retractable Fangs that activate either up or down for the most startling fang effect ever available for Halloween, Cosplay, film or live performance! The bottom line Retractable Fangs are a huge leap forward in vampire fang artistry & mechanical effects.