Now here's clever - a cylinder-shaped vibrator that turns any ordinary pump into a vibrating one! The vibrator has a belt-style fully adjustable harness that hugs the outside of your pump, and can be placed anywhere along the length of the cylinder. It fits pumps up to 5 inches in diameter, and the vibrations are controlled by a sturdy dial. The vibrations are really powerful too. A great way of adding an extra dimension of pleasure to an existing pump.