This is such an interesting product to me. I have never seen or heard of a Knuckle Duster Ring before, so I was pretty excited to check it out and see what it was all about.
What's unique and cool to me about this item is that is made out of H59 Brass so it can be a simple self-defense tool or it can also be used as a bottle opener. It is small in compact in size measuring in at 37mm x 56mm x 12mm with a 12mm thickness. It is also lightweight measuring in at just 77g.
I found that this knuckle duster ring is actually comfortable to carry around. Please note that this "ring" is not small enough to fit on your finger like jewelry. It's meant to be placed on your finger of choice for when you need to use it. With that being said, it does come with a convenient and adjustable strap that you can wear on your wrist or you can attach it to one of your bags. It's pretty versatile as far as how you want to wear it. You can even just stick it in your pocket if you would prefer.
While I did mention that this knuckle duster ring is lightweight, it is sturdy and feels durable. It also feels like it would hurt should you hit somebody with it. While it may not be the perfect self-defense item, it feels like it would be enough to possibly get out of a bad situation in the event you hit somebody with it. So I definitely like that part of this.
Additionally, having the bottle opener on here works amazingly well. It easily removes tops from bottles, yet isn't sharp enough that if my finger touches it, it hurts. It's actually smooth! So it's "sharp" enough to grip the top, but smooth enough to not hurt you. It seems like this company thought of everything for this particular item!
Overall, I really like it! I love the simplicity. I love the versatility of use and carry options. This knuckle duster ring is high quality and feels like it will do just as described on the website.