Pen designer, Allen Elishewitz notes, "These pen designs are evolutions of the custom tactical pens I have offered successfully for many years. However, they are very different from the other aggressive-looking pens and Kubotans on the market, that is, they do not look threatening, but are useful high-tech writing instruments with a stylish and futuristic design. If the user is threatened or attacked, the pens can be used at three levels of defensive force, depending on the type of threat."