The Cascade Flow Single Sheath - For those of you that like to keep it simple. This satin smooth silicone shaft is perfectly formed with a gently rounded crown making it ideal for external or internal stimulation. The powerful motor housed in the tip of the Cascade Vibe&#44; and the Flow sheath with internal silicone dampening system&#44; gives vibration only where you want&#44; meaning you can stay in control&#44; whist you lose control!&nbsp;<br /><br /><strong>Please Note: For use with Cascade lubricating vibe. Cascade lubricating vibe sold separately.</strong>