I do a lot of solo work, so for me personally sleeves like this have one main function. That being to enhance dildos or vibrators that may not have enough thickness or length. Or to make a larger toy just a bit thicker than normal. This method can work well for anyone, though a couple can find equal pleasure if the male partner is a bit lacking in length or thickness.

The exterior of the toy is mostly smooth, while the interior is filled with little bumpy nodules. These increase the stimulation to your cock while worn. Overall the toy is fairly stretchy but a lot tougher than it looks. The strap near the base to go around your balls is thicker so that it won't break as easily. The material (TPE) is more porous than silicone, so a condom should still be worn during penetration.

Overall I found the design of this sleeve to be fairly solid. It isn't thin like some of the ones I've seen, so it isn't likely to tear through a lot of usages. It's stretchy enough that it can easily slip over a number of thicker toys. For those intending to wear this, it seems like it would work best for those who maintain an erection length of at least 4-6 inches. Smaller than this and you simply won't be able to firm up the sleeve enough to get any positive usage out of it.