Designed to be a natural extension of the hand, the Toor Knives Thumper Defense Keychain Ring is the perfect lightweight non-edged pocket defense tool. With a Copper, Brass or Titanium construction, the Thumper is as deceptive and devastating as it is attractive. This tool is small enough to hang from your keys or a necklace but still provides the ability to punch through dense objects. FeaturesLow profile defense toolEasily concealable on a necklace or keychainNon-edged