The Tuff-Writer pen (Operator Series, black or gray) was designed to be the toughest pen out there, period. It is built to withstand blistering cold, intense heat and any kind of harsh environment an operator is bound to encounter. By Tuff-Writer.

The thixotropic ink in the hermetically sealed cartridge and pressurized to nearly 35 psi lasts three times longer than a standard ballpoint pen. With an estimated shelf life of 100 years, the pen writes at altitudes up to 12,500 feet where most other pens simply won't. Best of all, no matter how harsh the conditions your Tuff-Writer will work with operating temperatures from -30 to 250 degrees Fahrenheit (-35 to 120 degrees Celsius).

Designed with a sharp as well as rounded end, it can effectively be used as a take anywhere defensive implement or control device. The smoothly finished point also doubles as a PDA stylus device. The external knurling and slightly upward tipped spring steel clip allow an exceptionally low slip grip while not snagging during deployment or holstering.

In addition, this pen also has a new and improved satin finish and non-reflective / non-marking surface treatment which helps minimize fingerprint marks and reflection off the pen.

The best part is that the new size of this pen allows it to fit into virtually any shirt pocket. A little shoter, a a bit thicker, little easier to carry discreetly and yet tougher than its longer brother.