First, some specs: The Spiral, like all other Tenga 3D textures, is made entirely from body safe TPE (care info). It is porous and cannot be sterilized, but can be used with silicone or water based lube. It comes with a stand for storage and drying after cleaning, this will also keep is from getting dusty or dirty. The toy can be seen through the plastic, and despite the fact that most people won’t have a clue what it is, it isn’t particularly discreet. It does, however, remind me of a DNA Helix, which is pretty badass. The sleeve is said to stretch from 1/3″ to 3″ in diameter and from 5″ to 9″ long. I believe that it will easily accommodate most men, it easily fit on both the pet, and a larger dildo I tried it on. If you are extra long, it just may not go all the way to the base of your cock, but the part that is in would still get the benefits of the design.

The Spiral is one of five textures, and is one of the more mild ones. It has very small ridges in a tight pattern running all through the inside. The TPE is VERY soft, when it first arrived I kept poking, squishing and petting it… it feels NICE. To use, you remove the cover from the stand, and then take the sleeve off it’s post. It arrives with the texture side out, so you should flip it inside out and add some lube. In the bottom of the stand there is a compartment that comes with a decent set of instructions and a small packet of lube (which, sadly, contains parabens). Once the sleeve is lubed, it is ready for use.
I slid the sleeve down over my cock, I shivered and twitched, I was super sensitive. I asked myself if it felt good, and I thought yes, but that it was weird. I began working the sleeve up and down, applying pressure and just watching to gauge the reaction, and it was good. Apparently it was overwhelming enough Suffice to say, I was enjoying myself.

But eventually my arm was getting way tired, but I still couldn’t reach orgasm. Despite how good it felt, and despite how hard I tried, it just wasn’t happening. I stood up, and every time I thought I was about to cum, I didn’t. I came around the other side of the bed, I suggested that I might have to stop using it and try jacking off by hand to finish off. Again and again I came close to finishing in the Tenga, but I couldn’t. Usually I’m the one who can go all night, while I makes up for my occasional lack of stamina with enthusiasm and ability to come back for subsequent rounds.
By the end of the session I’d gone through more positions than I think I’ve ever used, certainly the most I’ve tried in one evening. I finally wore myself out, and never was able to orgasm. The joke became that this toy was the best thing that ever happened… to me.

That week, the pet was left with instructions to continue trying the toy. I wanted to try with less lube, different techniques, etc. I was looking to find a way to make the 3D work for me. Checking in, I’d still not reached orgasm using the sleeve. While it felt great, I couldn’t get there. I was disappointed. I'd used it in the shower, so I suggested again that I might have to try it in bed, with less lube.
using less lube helped! Turns out, I needed a bit more friction for it to get me over the hump.
So what is the final verdict? It’s pretty easy to clean and care for, easy to store in it’s stand/cover. It feels great and I actually continued using it past the testing period. Success! It won’t replace other favored methods of masturbation, but it does offer an excellent break from the routine.If you ask me what it feels like: “mini waves/ripples, feels like a vagina.” So there you have it. It also offers some suction, thanks to the closed end, but you will have to “burp” it and work the air out at insertion.
After figuring out how to make the 3D work for me, I can’t wait to try other Tenga products. I’ve got my eye on the Eggs, Flip or Air. If you’re looking for a reasonably priced sleeve, with multiple texture options, the Tenga 3D might be a good choice for you

Keep this in mind once your done. Cleaning this thing can be a pain in the ass.
I Just leave it in the sink in a warm plain water after use and make sure it's cleaned thoroughly before flipping back out to avoid getting any backsplash all over on yourself.

The toy still feels like the first time I used them. It was durable! For the price of the tenga 3D this couldn't go wrong! Definitely worth for your investment!