The Optimum Series Automatic Smart Pump will help enhance your sex life! The Pump’s exercise modes will help you become a better lover by improving your stamina! The tight chamber will help you reach your orgasmic climax while you stroke! Use the pump regularly and watch the noticeable difference in the size and shape of your penis! Use the stroker sleeve for a more intimate experience! Enjoy easy clean up with this maintenance free stimulator sleeve, simply wash with toy cleaner and warm water before and after each use. Use ample lubricant for easy insertion.