Using the Trainer Toyfriends and thereby doing your Kegel-exercises not only strengthen and help post-birth restoration of the pelvic muscles and prevent trouble with urine-leakage, but can also create stronger sensations during intercourse and give you more intense orgasms. The Trainer Toyfriends are made in solid smooth seamless silicone and are easy to insert and extract, safe, hygienic and comfortable to use. The length of the string is designed for easy extraction without creating discomfort by having a bundle of string in your panties, there is no moving object inside that creates noise without adding anything to the function, and the smooth feel and ovoid design make them not only do good and feel good but also look good. 4 x 4 products included.