The Ultra Erection Keeper Vibrating Ring is the ultimate couples toy for when optimum pleasure is a must. If you want to get hard and stay hard, this stretchy ring is for you. Want to give her more satisfaction while being stimulated yourself - you're in the right place? Designed to fit snugly around your penis the vibrator at the top sends 7 function of vibration to her clitoris while the balls at the base stimulate your testicles with every thrust. Satisfaction guaranteed! Batteries included.