I recommend.... sending me a message and letting me tell you everything! Lol. I'll try to be brief...

I have used several balls. My most recent were the Crystal Eggs which are basically ben-wa balls since they have no weighted ball inside, but they are glass. No fun. They're damn near ineffective compared to my Mini Luna Beads, which are the set I highly recommend to you if you need a smallish ball (if Smartball and most of the average balls are too large for you, like they are for me, the Mini Luna's will be perfect).

I have found in my long journey of kegel products that a good weighted ball is a must for me. I've tried the Smartball Teneo Uno which was so painfully large that it basically embedded into my vaginal walls and did not make me use my muscles at all. So I tried many others and ended up with Mini Luna Beads and the Bedroom Kandi set since both are very small.

I do not like the BK set because I don't feel the weighted ball ever, and they do not make me work my muscles as much. The Mini Luna's are fabulous because I'm getting a great workout and the internal ball is pretty hardcore. I do recommend them as long as you need a smaller ball. However, if larger is better (like your average kegel balls) then go with Luna Bead original. They are identical to the mini's only larger.

Hope this was helpful. I have like a dang life-long experience with different balls and have been trying all kinds to compare and find what works best -- nothing has surpassed the Lunas! If you have more questions, feel free to inbox me. I'd be happy to chat.

Also, I've done comparisons in my reviews on the different balls and their size/weight if that would be of any help?