How does the Tenga Flex twist without a motor? The outer case of the Flex is soft and molded in a spiral, like a loosely wound spring. An air hole sits at the top. Cover that hole when you are fully inside and then pull back, and the air inside cannot be replaced. The case collapses inward along its spiral ribs, so it winds tighter as you withdraw and unwinds as you push in. Your stroke supplies all the movement. The spiral turns it into a twist.
Tenga Flex Fizzy Green: fine nubs in a twisting spiral
Flex is Tenga's reusable stroker with a flexible, spiral-ribbed case that you can squeeze and that twists by itself under suction. Fizzy Green is the fine-textured version. Its elastomer sleeve is lined with spiraling rows of small, closely packed bumps, so the sensation is a busy, all-over tickle instead of a few large ridges. As the case winds and unwinds, those rows sweep around you.
The sleeve comes out of the case and turns inside out for washing. The bottom cap flips over to make a drying stand, and everything packs back into the case for storage. A sample pouch of Tenga lotion is included to get you started.
Best for: People who like detailed, fine texture and a softer feel over heavy ridges and a tight grip. It is a penetrable sleeve for solo use or for a partner to hold, and a sensible first reusable stroker for anyone moving up from disposable cups.
At a glance: Fine-nub texture · Twisting spiral case · Reusable · 5.5 in insertion length · Lotion sample included
Key features
| Spiraling fine nubs |
Rows of small bumps wind around the sleeve for a dense, tingling texture. |
| Spiral-ribbed case |
The soft case winds and unwinds as you stroke, adding a twisting motion. |
| Air hole suction |
Cover the hole on top to create a vacuum; uncover it to release. |
| Squeezable body |
Press the flexible case with your hand to add pressure where you want it. |
| Removable sleeve |
The sleeve pulls out and turns inside out for a thorough wash. |
| Stand cap |
The bottom cap inverts into a drying stand and closes the case for storage. |
Specifications
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Size: 6.5 x 2.91 x 2.91 in
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Weight: 10.9 oz
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Insertion length: 5.5 in
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Insertion width: 1.77 in
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Materials: Elastomer, PP
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Power: Manual, no batteries
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Use: Reusable
In the box
- Tenga Flex Fizzy Green (case, elastomer sleeve, stand cap)
- Tenga Lotion Regular sample, 0.34 fl oz
How to use
Pull the stand cap off the bottom. Apply water-based lubricant around the opening and inside the sleeve. Slide in with the air hole on top uncovered. When you are fully inside, place a finger over the hole and pull back: the case tightens and twists around you. Lift your finger to let air in and ease the suction. Afterward, pull the sleeve out of the case, turn it inside out and wash it under lukewarm running water. Pat it dry, turn it back, flip the stand cap over and stand the sleeve on it to air-dry.
Care
- Use water-based lubricant only; oil and silicone lubricants can damage the elastomer.
- Wash with cold or lukewarm water and, if needed, a mild neutral soap. No alcohol cleaners.
- Turn the sleeve inside out to rinse the texture clean, then pat it dry.
- Air-dry on the inverted stand cap until no moisture is left inside.
- Store it reassembled in its case, somewhere cool and dry.
More on materials in our material safety guide.
Frequently asked questions
How is Fizzy Green different from Silky White and Rocky Black?
Each Flex has its own interior and its own firmness. Fizzy Green is lined with spiraling rows of fine bumps. Silky White has gentle ribs, and Rocky Black uses firm elastomer with strong ribs for more resistance. The cases, sizes and weights are the same.
Is the Flex reusable?
Yes. Tenga sells the Flex as a reusable product, provided you wash and dry it after each use. It does not give a set number of uses. How long it lasts depends on your lubricant, cleaning and storage.
Do I have to cover the air hole?
No. With the hole open the Flex works as a soft, textured sleeve. Covering it once you are fully inserted is what adds suction and sets off the twisting motion, so you can switch between the two feels with one finger.
How do I dry it properly?
After washing, pat the sleeve with a towel and turn it right side out. Flip the stand cap upside down and set the sleeve over it so air can reach the inside. Leave it until it is fully dry before putting it back in the case.
What size does it fit?
Tenga lists an insertion length of 5.5 inches and an insertion width of 1.77 inches for reference. The sleeve is soft and stretches somewhat, but it can feel snug for those with above-average girth. Use plenty of lubricant.
Try the spiral in fine detail
Add the Tenga Flex Fizzy Green Spiral Reusable Male Masturbator to your cart for plain packaging, privacy-safe billing and a mystery gift in every order.
For adult use only. Read the instruction manual before first use. Specifications are the manufacturer's.
