This toy is a basic cock ring. You stretch it out and slide it over your penis, your partner's, or a dildo. The bullet is one switch: off or on. It vibrates up the shaft of the penis and the clitoral stimulator can sit over the balls or overhead for clitoral stimulation. I would say it's mostly safe to use in the backwards position, but it is not completely non-porous, so this needs to be kept in mind for sanitation.
If you would rather, this toy can also be used manually as a simple clitoral stimulator or to stimulate any part of the body you wish.

This ring is made of TPR silicone. This means it is more flexible and soft, like jelly, with the safer, low-pore ratio of silicone. In simple terms, the toy is safer to use repeatedly than more porous materials.
There is minimal scent to this material. My partner could smell nothing. I have heightened sense though, so I could smell a low level, new rubber smell.
It is very stretchy, accommodating a wide range of girth. There are extra holes around the outside of the inner ring. I believe this may be useable to hold up the scrotum if desired. The inside of the ring is smooth with no noticeable seam.
The nubs on the bullet create just enough sensation to stimulate nerve bundles without causing enough to create pain. They are just firm enough to enjoy, while still remaining flexible and "soft."

This ring is just the basic ring, with the clitoral tube attached to one side. This toy is typical for an entry cock ring. It is adjusted by stretching it and was easy to remove once the festivities came to a close. For myself, the nubs on the clitoral stimulator reached me perfectly. That is to say, my anatomy worked with this toy. My partner is average, so I would say it works for an average-sized penis, but could see it working for a larger male as it is so stretchy.

The bullet consists of only one level and a small plastic on/off switch on one side. For me, being unused to strong vibrations, this level of vibration was plenty. I felt it was perfect for myself and my partner liked the vibration level as well. I would venture to guess the intensity level is the low end of mid-range to right at mid-range. The bullet included is very quiet and was barely audible.
Although the ring material is safely reusable, the bullet lasts for one or two uses at best.

This toy can be cleaned with hot water and soap, once the bullet is removed. It should be at least rinsed well before each use and washed well after each use. As a rule, I tend to store my toys in their own plastic bags or cotton bags to avoid chemical reactions or contamination.

This toy is in a small blue, plastic square. There were basic instructions on the package. However, this toy is rather self-explanatory.
The package is not intended to be reused for storage.

My partner and I enjoyed this toy immensely. This was our first foray into the world of cock rings. The vibration was just right. The material was perfectly soft and firm. We both finished more quickly with the aid of this little ring. The only thing I would like to see improved is a better bullet for this toy, but that can be replaced separately. Overall, we enjoyed this toy a lot.
We have since purchased three, more expensive, cock rings and thus far none hold a candle to this cheapy.
Personally, I think one's enjoyment of this toy boils down to how much vibration you like or require and how well your anatomy pairs up with the clitoral attachment. Everyone is different, so experiences will vary.