<p>Luv Inc's Kegel ball set comes with two soft ribbed silicone textured exerciser options so users can gradually increase training level to suit their specific needs.</p><p>The rattling ball inside each Kegel ball causes the vaginal muscles to contract with wearing so that the body naturally tenses and relaxes throughout use.</p><p>Made of 100% silky-soft silicone, these Kegel trainers are easy to clean and hypoallergenic to ensure a safe training each and every time.</p>