The blade is 5 mm in length by 2 mm in width at the base, with a spine of 1 mm. It's a double-sided curved blade with thin, sharp edges and a pointed tip.

For comparison, the outer most layer of skin on humans known as the Epidermis is on average 1 mm thick and 20% of the length of the blade. The layer beneath it known as the Dermis contains both the blood vessels and nerves, and is on average 2 mm thick, which is 40% of the length of the blade. In a self-defense situation, the victim could strike the attacker wearing the Defender Ring™, draw blood, hit nerves, and still only have used 50% of the blade. Furthermore, if the user struck the attacker with the entire 5 mm length of blade, the blade can potentially hit muscles and bones of the body.

Currently, the ring material is stainless steel. We are exploring the implementation of other jewelry materials like silver, brushed steel, and gold. We are also exploring adding other design elements such as diamonds, stones, pearls and gems to future ring tops.

The ring can be worn like an ordinary piece of jewelry on a woman's finger. Simply unscrew the ring top from the ring band in a counter-clockwise direction to unsheathe the self-defense blade.

We developed our product to be an everyday, aesthetic jewelry ring that women can wear regularly. Our designs are hand-crafted and our product comes in the most common ring sizes for women.

Please consult with an attorney regarding the legality of purchasing this product. Self-defense weapon laws vary from state to state and Defender Ring™ does not make any claims to the legality of this product. However, this product is intended to be used primarily as an ornamental ring piece of jewelry. You may refer to these resources and websites for additional information: TSA Prohibited Travel Items and Knife Laws in the United States

Yes, of course both men and women can purchase, wear, and use the Defender Ring™. The Defender Ring™ has been developed as a self-defense product for women, but our wide range of ring sizing options allows for both women and men to purchase and wear the ring comfortably.

The Defender Ring™ requires minimal maintenance. As both a piece of jewelry and a blade, the Defender Ring™ must be intermittently cleaned and cared for to maintain its appearance.

All self-defense products have different advantages and disadvantages. We believe that carrying a bulky pocket knife in your bag is inconvenient and impractical, as well as threatening and possibly illegal. That's why we developed the Defender Ring™, so women can wear it regularly just as a piece of jewelry that doesn't need to be carried in your bag. Click here to read a longer post comparing the advantages and disadvantages of the Defender Ring™ vs. pocket knives.

The Defender Ring™ is very different from both a stun gun and pepper spray. While all three self-defense weapons are effective and can deter or disable an attacker, only the Defender Ring™ is immediately accessible and can be worn on your finger every day. Stun guns and pepper spray are bulky and must be carried in your bag, and retrieved from your bag in the presence of danger. We've written a detailed article comparing the Defender Ring™ vs. pepper spray self-defense weapons and stun guns here.

Self-defense classes are a very special art that requires years of practice, patience, dedication, and skill. It's hard to compare the Defender Ring™ to taking self-defense classes as they are very different. In some respects, you can look at the Defender Ring™ as an effective quick fix to this problem, and self-defense classes as a long term solution. The best option would be to combine the two together, as self-defense classes utilize many finger, hand, fist, and arm motions, that when combined with the Defender Ring™ can be extremely effective. Please click here to read our detailed article about the Defender Ring™ and Self-Defense Classes.

Every ring top that we sell will fit on every ring band that we sell. They are all interchangeable. Our original line of ring top designs consists of five (5) specially crafted designs. Our design team is constantly developing new ideas and will release new designs and ring tops every month!

We currently offer four (4) ring designs in our collection and they include normal ring aspects like a setting, casting, mounting, shoulder, prongs, gallery, and band that are modeled into our designs.