The Dynamic DuoAlthough this exerciser does not fit my personal anatomy, there's no doubt that it performs the job it was designed to do. It is visually and sensually appealing, safe, and easy to use and maintain. If you need a gentle, subtle, but noticeable stimulation to help with your Kegel exercises and can accommodate the length of the Duo, this might just be the perfect choice for you.
To use this item, you simply insert it into your vagina and wear it about. You can use them at home, at the office, in class, at the grocery store...One of the great joys of these balls is the thrill of wearing them around without anyone knowing. As you go about your day, the motion of the weights inside of the balls stimulates your body internally, aiding in completing your daily exercises. Kegel exercises can benefit many women and are especially helpful for women with weakened vaginal muscles caused by childbirth and aging, among other things. However, pregnant women and those who have experienced UTIs (urinary tract infections) should discuss the use of vaginal exercisers with their doctors first. I have also heard that women who regularly use tampons or diaphragms should also refrain from using these. Check with your doctor if you have any doubts.
Theoretically, these could be inserted anally if you were so inclined, since they have a retrieval cord and they can be fully sterilized. Fun Factory advises against it, as well as against inserting them into your nose or ears! Personally, I wouldn't risk it. If you choose to do so, make sure you either cover them with a condom or sterilize them between uses - be it vaginally, anally, aurally, or nasally.
The full length of the Teneo Duo is 7 1/2". You can pull the cord up and loop it over the top ball, keeping it in a compact little bundle which makes it very travel friendly. The cheerful colors lend a discreet appearance to this futuristic-looking item. The Duo's insertable length of 3 1/2-4" doesn't sound like much, but for wearing about, standing, walking, running, bending, climbing stairs, or whatever else one may need to do in the course of the day...some women may find the Teneo Duo rather uncomfortable. I tried it repeatedly in the interest of writing this review, but I can only wear it for about ten minutes before the pressure at my entrance becomes irritating bordering on painful. The unfortunate truth is that I cannot comfortably accommodate the length of this exerciser. Cutting the length of the connecting cord in half may have given enough space or it's possible that the balls themselves need to be a touch smaller all around. I wish that Fun Factory had decided to make them just a shade shorter when they updated the design from the Original Smartballs. See the "Personal Comments" section for a detailed comparison.
These are small and easy to store. It does not attract lint or dust. I keep mine in the boxes they came in, just because they're so neat, but they can be stored in a drawer, in a sock, in a small drawstring bag...The retrieval loop can even double as a cord for you to hang the balls up. Be careful not to store them with toys made of Jelly as the Silicone material can react badly, resulting in damage to one or both toys. Similarly, use only water-based lubricants with this item to avoid ruining it.
The box also includes a brochure with pictures of Fun Factory's vast array of products, as well as a small sample packet of the company's water-based lubricant, Toyfluid, intended for use with their many high-quality silicone sex toys.
Material - Original Smartballs were made of Elastomed, while the Smartballs Teneo Duo is made of Silicone. A definite improvement since you can now sterilize them!
Size - The Original Smartballs were slightly smaller in diameter, measuring in at 1 3/8", while the Teneo Duo measures in at 1 1/2" in diameter. Unfortunately, they are identical in length, making them too long for some users.
Design - The Smartballs Teneo Duo has a much more sturdy, built-in retrieval cord, as well as a hollow in which to place your finger for insertion. Although the Original Smartballs lacked the improved cord and the finger hollow, they were not textured the way the Duo is, making them somewhat easier to insert.
-Performance: Truthfully, they feel about the same inside. They are subtle, but very stimulating.
As compared to the Smartballs Teneo Uno:
Material - Both are made of matte, high-quality silicone.
Size - The balls themselves are identical in size, but the Teneo Uno is only one ball, while the Duo is two. The Uno is only about 1 3/4" of insertable length. The Duo measures 4" of insertable length when stretched out, or about 3 1/2" with the attachment flexed.
Design - The Uno has a slightly shorter, slightly narrower cord than the Duo, which makes it more stretchy. It has held up over the years and has never broken, but the Duo's cord is significantly sturdier. Unfortunately, it's also more noticeable when you're wearing it.
Performance - The movement of the weight in the Uno is not noticeable at all for me when it is inserted. The movement of the weights in the Duo are definitely noticeable. Subtle, yet pleasing.
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