Hop aboard the Double Decker and prepare for a knee-trembling ride! With a double whammy of two powerful three-speed bullet vibrators, enhanced ticklers for clitoral stimulation, and a fantastically stretchy erection band, the Double Decker will transport you to a thrilling new destination. Just pop the Double Decker out of the packet, slide the chunky erection ring to the base of the penis, and press the buttons to start the vibrations. Vibrations last up to 90 minutes. Batteries can be replaced.