These silver balls are very well weighted and a great way to build up your vaginal muscles. The only thing I can say about them is beware of losing them! I have inserted them and had them fall out at inopportune times! I like what the details here recommend, putting them in a condom and tying it shut before use. Great idea!

They can not only fall out, but they can get stuck up near your cervix and need to be removed, which can be difficult. I have heard others say the same thing about losing them, internally or externally. (remember that the vagina is a closed area and they cannot be sent throughout the body, but can get wedged up in there and you will need to stick a few fingers in to remove... could add to the fun, if you have your partner help!)

All in all, I do not see them as useful. They can be difficult to work with. When inserting, be sure they go in deep enough to stay in. Do not get alarmed if you cannot find them for removal! They will not travel through your body. Just relax and insert a finger or two to locate them. You can also try bearing down and that might make them fall out or get closer to the entrance of the vagina.

I think if you wanted to build up your vaginal muscles, doing Kegel exercises would be your best bet! Just contract your muscles like you have to pee. Hold it tight. Try doing this throughout your day, while driving, sitting, walking. Building up these muscles can really add to the man's enjoyment! Try tightening and holding while he is in you...he will notice and love it! Try contracting the muscles repeatedly...tighten and loosen...see how he likes that!

I have had them fall out while walking, as well as get stuck up near my cervix and I had to go in and remove them.