Smartballs from Fun Factory will captivate lovers of the smaller pleasures in life. Smartballs Teneo Duo vaginal balls are especially suitable for beginners and for women with a dropped or tilted uterus or those who simply want to get their pelvic muscles back in shape. Trained muscles lead to more feeling during sex. The ergonomically formed finger hollow "easy-in" makes insertion simple. The innovative technology promises extremely quiet and smooth use as well as a very steady and fast rotation of the internal balls. You will love Smartballs!