Have you ever used Ben Wa Balls?

Ben Wa Balls are balls that can be inserted vaginally and kept in for short periods of time to strengthen vaginal muscles. (Make it easier to clench, generally tighter, etc)

I have a pair, but I honestly forget to wear them often. When I do wear them, they provide a really faint, but nice vibrating sensation due to having loose weights inside, which move when I do. Although I haven't noticed myself any tighter after use, they do get me quite wet, surprisingly.

I don't regret buying mind, but I don't really use them much either. XD less