NUKs are made from high quality injection molded nylon. They are easy to carry in your bug-out bag, in a purse, in your pocket, or even in your sock. They are NOT toys. Perfect as last-ditch, last resort, back-up, and self-defense pieces.
The Tactical NUK was designed as a backup protection piece. It can also be used as a letter opener, box cutter, survival tool... The rest is up to your imagination.