Build a foundation for better orgasms while having an orgasm - hey. we women have to multitask! - with a pair of Duotone Orgasm Balls. Like ben-wa balls. these can be used to strengthen vaginal muscles for increased tightness and pleasure during sex. They can also function as a sex toy in their own right. vibrating you internally and externally to a full body orgasm! Experiment with all the different ways you can find pleasure with these marbled purple balls. scientifically weighted for your pleasure.