Three-piece silicone Kegel training set with easy retrieval cords is designed to help strengthen and revitalize pelvic muscles. Small trainer weighs 80 grams and measures 5.5 by 1.25 in. overall. Medium trainer weighs 60 grams and measures 6.5 by 1.25 in. Large trainer weighs 45 grams and measures 7 by 1.5 in.