Smart Balls are designed to help train the pelvic muscles and provide gentle stimulation internally. There are two basic ways to take advantage of this design. In either case, I recommended at least a bit of lube. The most hands-on approach is to insert them and clench down trying to keep them in while pulling on the string to remove them. This method is fairly straight-forward and self-explanatory. You can also take advantage of your body's natural reaction to contract the pelvic muscles around things that are inserted. To do this, simply insert the balls, and go about your business. As you walk, the balls inside will roll around creating gentle vibrations causing your muscles to contract around them. You can also cause movement of the internal balls with rhythmic contractions of your pelvic muscles.

Stronger pelvic muscles are said to enable stronger orgasms, and in older women who are post menopause, they help maintain bladder control. You can wear them just around the house, out for a day of errands, or even to work if you are so brave. If properly inserted, they do not try to work themselves out. They can be used by and for yourself or for a more fun twist on things by couples. Have your partner insert them before a trip or an evening out, and you'll be reminded of what is to come with every move you make.

A word of caution: while these can be used as a short string of anal beads, these are not meant to be worn anally which means don't let go of the string. The muscles there have a tendency to contract and try to draw things inward; it could end in an embarrassing trip to the doctor.

Smart Balls are covered with a material called elastomed. It has no chemical or rubber-like odor and feels rather soft and smooth to the touch. The balls are firm, and the elastomed covering isn't very thick, so there is no give to the balls themselves, but the shaft that connects them is rather flexible. The string seems to have been attached to the bottom ball during the elastomed pouring process. The connection seems quite sturdy. There is no need to worry about it detaching. The string is also covered with a thin, very flexible layer of a non-porous material too. (It may be elastomed as well, but I'm not certain.) This all makes for easy clean up.

Smart Balls seem to be very well designed. They seem quite sturdy and durable with minimal care and maintenance required. The balls themselves are sized not to be intimidatingly large but large enough to be felt and gripped onto. The string is long enough that you need not worry about being unable to remove them but short enough not to be annoying when worn about for the day. It is no more noticeable than a tampon string. They are also well designed in regards to sound. I was concerned that the movement of the inner balls would be very noticeable, but I was quite wrong. In your hand, you can definitely hear them moving, but once inserted, they are completely inaudible.

Each ball has a slightly oval shape. Each one is approximately 1.5" in diameter and 1.75" long and spaced approximately .75" apart with a 3.5" retrieval string. Upon first picking them up, I was surprised by their weight. They look relatively small and light in the packaging. They aren't terribly heavy however, and they weigh in at just over five ounces. It is enough heft to be felt when moving about but not enough to induce fear of them falling out.

Smart Balls do exactly what they are designed to do, and in my experience with them thus far, they seem to do it well. After an hour or so, I can tell that my pelvic muscles are being worked due to a very slight soreness akin to what you feel after a less intense work out. After a few weeks of wearing them for an hour or two here and there, my partner also says there is a noticeable difference in the strength of my orgasmic contractions.

Use, lather, rinse, and repeat. These are super easy to clean up. I don't know that they can be boiled or bleached but using a bit of Dial will do the trick.

This product comes in small cardboard outer box with a plastic snap-shut clam shell inside that doubles as a storage container. The packaging contains a brief instruction pamphlet and Fun Factory's complete line-up as well as samples of Toy Fluid and Body Fluid.

The first time I tried them, I went with the "insert and pull" method. They feel nice going in although it does take a few seconds to get them in all the way since the shaft connecting them is pretty flexible. I immediately felt my muscles contract around them once I got them in place. It took a few tries to learn how to control those muscles to resist trying to pull them out, but once I figured it out, I found it rather enjoyable. It is too bad all workouts can't feel like that.

I then decided to try the "insert and go about your day" method of training my pelvic muscles. I figured I would do some chores around the house, so if they fell out, it would be no big deal. They never did. As I walked around the house, I was acutely aware of the new sensations. Sometimes the vibrations were minimal but still noticeable, and sometimes I would move just so, and they seemed to go wild inside me for a second. After a couple of hours, I was so acutely aware of their presence that I had to do something about it and spent a good while finishing what they had started. This is when I also discovered they add an interesting take on double penetration.

A few days later, my partner got a wild idea and insisting on inserting them before a night out. Let's just say there's a reason I mentioned this earlier.