This ancient technique of pleasure is still enjoyed today by women worldwide. They stimulate and massage you while challenging your pelvic muscles to hold them in place. They are also perfect to use along with other toys. Try using them while sitting, in the shower, or around the house. Perfectly sized. it is smaller requiring user to increase muscle control which helps user develop more muscle control Perfectly weighted. Develops the vaginal muscles and pelvic floor Use kegel balls for vaginal stimulation or to increase arousal. Made from body safe materials and meets or exceeds international safety standards as set forth by CE and ROHS directives. Phthalate and latex free. It's your body be mindful of what you put in it.