The Travel Wrench’s design can be traced to Worden’s world-class expertise in Filipino martial arts. Its L-shaped frame is directly influenced by the indigenous Filipino knife, the kerambit. Configured with a ring at the top of the handle for placement of the index finger, the Travel Wrench’s ergonomics allow for absolute weapon retention even if one’s grip opens. From its ring it extends into the handle and then turns ninety degrees forming a bar-shaped surface positioned at the bottom of the fist. It is with this bar that punishing hammer-fist styles of blocks and strikes can be inflicted. The end of this bar terminates in a protrusion extending beyond the fist allowing for pin-point thrusts against bone, soft tissue, and vital points. Lastly, the finger ring is also a striking surface when a top-fist or phoenix-eye type of blow is utilized. Strategically, any and all Travel Wrench maneuvers can be translated to 'self defense with flash lights, batons, improvised weapons and even knife techniques!' The 'Travel Wrench' training program also features a 'Instructional book and DVD' for those that wish to take their personal skill development to the next level. Look for those educational products at the seminar or directly via the www.kellyworden.com website!