Bellesa Kegel Balls are the pinnacle in quality and thoughtful design. Everyone who buys kegel balls is starting from a different point and with slightly different needs- we designed these kegel balls to address specifically that. Toning your pelvic floor muscles can help you climax more easily and with greater intensity, as well as providing you with a host of other benefits such as preventing incontinence, improving vaginal strength, and more. Small (single ball) - 4.7" x 1.37" (38g) Medium (two balls) - 6.3" x 1.10" (52g) Large (two balls) - 6.5" x 1.18" (65g)