The Fun Factory Smartballs Teneo Duo is the newer generation Smartballs, upgraded up from the original ones. They are amazing and so beneficial in many ways. These vaginal balls are especially made for kegels. They are suitable for beginners and for women with a dropped or tilted uterus or those who simply want to get their pelvic muscles back in shape.

To strengthen pelvic muscles and support postnatal exercises, Smartballs are inserted lengthwise into the vagina until only the removal loop is outside of the body. The vibrations of the balls send a signal to the pelvic muscles that something needs to be held onto, thereby training the muscles.


Trained muscles lead to more feeling during sex. What’s really helpful is, this product has an ergonomically formed finger hollow "easy-in" which helps a lot for insertion.

Smartballs can remain in the vagina for just a few minutes or a few hours. For the greatest effect, they should be worn during everyday movements. Use the removal loop to pull them out. Women who would like to train there pelvic muscles during pregnancy, should only use Smartballs after consulting with their midwife or doctor. After giving birth, Smartballs should only be used after all birth related injuries have healed and the lochia has stopped and postnatal exercises have already begun.

Also only a few drops of water based lubricant to create a pleasant, unpainful and easy insertion. Never use silicone or oil based lubricant with these Smartballs as it can lead to deterioration and damage them.

The Smartballs are made out of 100% silicone so it's non-porous, body friendly and easy to clean or sterilize. They are a silicone-encased ball of plastic with small weighted beads inside. The product itself is firm if you squeeze the balls in your hands. They are also a bit flexible towards the middle of the kegel balls where they connect so they can create some movement and stimulation.

As far as texture and feeling goes, I found this product to be very smooth and pleasing to the touch. There are really nice raised criss-crossed patterns on them which add extreme stimulation and arousal while doing kegels that I found kind of bumpy feeling, but I loved it. They kind of have a sporty look to them. A really great thing about these is they have no smell at all, so none of that rubber chemically smell. The texture and material is highly pleasing and stimulating and not rough.

I really liked the design on these, they are very arousing. They also can be discreet since the could pass as a cat toy, this popped in my head as a played with them in my hands. They also come with a retrieval cord which if very sturdy and strong. I pulled on these with a good tug and the cord is strong enough not to break. As for shape, thickness and length of the smartballs, they may be a tad to big for people.

I found myself that they fit but the "easy-in" finger press is right smack near the outside of my vulva. The size by circumference is 4 3/4". For Diameter its 1 1/2" which can be pretty big or thick for beginners. I'd have to say I'd only recommend these to non-virgins and advanced users being the fact there thick balls.I didn't have a problem with the size.

It says they can be used for anal play but I wouldn't recommend it personally being the fact the way they are textured and that retrieving them out of your rectum could be difficult. The insertion length is 4 1/2" and the total length plus retrieval loop is 7 1/2" so these are completely travel friendly and can easily be stored in a purse or a box, even the one it came in.

Personally, I love the way these Smartballs rotate in me as I do kegels. There completely comfortable. Once in, you can't feel them until you start doing kegels. It's highly arousing and the textures feel great massaging my internal vaginal region.

Not even an hour later I took them out and they were soaking wet in my juices. I felt like having sex to be honest. They also gently massaged my g-spot. I got that tingly sensation you get when your turned on in my pussy and start getting wet.

I felt a bit tighter but they say you won't get full results till 12 weeks after using them faithfully. As far as the cons, I found them to be a tad bit long for me. Other than that I loved these and will use them as a daily workout. I can definitely feel them work my pc muscles and this is a amazing feeling. They are worth the price you pay.

Since the smartballs are made out of 100% silicone and non-porus you can use any mild soap cleanser or boil them in a pot of water for 5 minutes max. The instructions the come with explain that you should wash the before first use and after each use. As mentioned previously you should only use waterbased with silicone products.

The box and the balls come with instructions folded up in nearly every language Dutch, English, French, Spanish, Italian and German. And there nice enough to include a free sample of toyfluid waterbased lubricant for insertion.

The box itself is simple yet attractive its silver red and white with a graffiti design of the kegel balls on the box. The box also has a opening to see the product inside. It also has a magnetic closure on it when opened explains informative information about the Smartballs Teneo Duo and what there used for. That also is printed in different languages and English.It also says it's made in Germany.

The box instructs not to put it in your nose or ears, why someone would do that is beyond me. This box seems to be discreet. The only way to know what is it is to open the magnetic closure and read the English part explaining it, so the box you can use safely for storing them.

These kegel balls drove me up the walls with the texture and vibrations when walking with them in I was so horny I wanted to whip out my toys immediately and wank myself off. I felt sexier after using them. This is something I'll be keeping in my purse or where ever I may be. I love them they feel amazing.