As always, Ophoria makes a good, quality product. Available from Fascinations Fun Love the Ophoria smooth K-Balls are an excellent, body safe, silicone product. (They are also available in a pink, ribbed style. )
At just under 2″ in diameter, they are easy to slip in, just put a little water based lubricant on them, a tad on yourself if need be, and slide them in. I find it easiest to put a finger under one first and get that one in, then push the other one in. The silicone string will hang out of you, similar to a tampon “tail.” This makes retrieval of the K-Balls a cinch.
Being that they are silicone, you want to only use water based products on it, and store them away from other silicone products, so there is no chance of material degradation. As for cleaning, you can do it a couple of different ways. (Also, always ensure that you clean your sex toys before *and* after each use. You can use a mild body friendly soap with warm water, a water based toy cleaner, or because this is a fully silicone product with no motor, you could boil it for 5-10 minutes.
As for the actual use, I did enjoy having the K-Balls inside of me! They are quite hard, with the connector between the balls being a bit more malleable. You definitely feel them inside of you no matter what position you are in; sitting, laying, standing or even moving. As such, it makes it simple (as in not complicated, rather than easy) for you to use your kegel muscles around them.
I am not familiar with kegel exercises enough to suggest them, or say exactly how to do them. But what I can say is that I sure got a workout with these!
Regarding these in comparison to “orgasm” balls, since they do have the smaller balls that roll around inside the bigger ones, I can see pleasure coming from them. However, considering how hard these ones are, on a personal level, I’m not sure I’d want to use these in a specifically sexual setting.