The TROJA Vibrating Ring should only be used once and should be disposed after use.
Instructions for use: Put ring on erect penis with vibrator on top side and protruding bump facing forward. Position the ring on the base of the penis. To activate vibration, carefully press the on/off switch inward. The switch is located on the side of the vibrator. Vibration will last about 20 minutes or until the self contained battery is exhausted. To stop vibration, carefully pull on/off switch outward until vibration stops.