I purchased this product for my husband; he just doesn't know about it.

I love this little tool so much; my husband is just like most men and loves blow jobs. I find this toy helps me satisfy him when I am tired and he is in the mood for a good blow job. I just warm up a lubricant, fill the mouth of the toy with a little bit, spread it around, and act like I am giving him a blow job, when it's really the toy doing all the work; either he hasn't put it together that it's a toy, or he just doesn't care either way. You can use this toy as mentioned above, or only use it for the base of the penis and manipulate the top of the penis with your hand or mouth.

You can also use this toy in case your partner needs to go larger and can not fit himself fully inside; you just place this on the penis and sit on top.

It's super easy to clean: you just pull it inside out and wash it off with warm water and a toy cleaner.
I would suggest you dry it with a cloth that will not leave little hairs behind and do not leave it inside for an extended period of time; they tend to wear out slightly from stretching in a direction they were not meant to for too long.
The toy is made of TPR, which is a a rubber polymer blend, so you want to use a silicone or water-based lube. Do not use boiling water. Always clean toys after use.

These toys have no electronic parts to them, so they can be used anywhere and everywhere. It fits in a large pocket, but the bulge would be visible.
Pairing this toy with a vibrator and as I stated before, or a water or silicone-based lube could add a few more levels to this toy's functionality.