The description fits this set perfectly. The material is silky soft and premium quality silicone that offers an easy to clean surface and a comfortable fit. These are great to wear to help tone those important muscles down below. These are discreet so you can wear them anytime without anyone knowing and the internal vibrations offer a fun, exciting subtle reminder that they are in place! These stay in place well, and they are easy to retrieve due to the silicone string. The Tracey Cox toner balls would make a great addition for anyone looking to improve their muscle tone without performing typical Kegal exercises.