Designer Rainer Wenning calls his Waves MFS a "physio-tactical" palm stick, which might be the best bit of pretentious, made-up terminology I've ever heard. Because what "physio-tactical" basically means is that after you use the tool to beat the shit out of an attacker, you can then pop a squat on the curb and use it to soothe your hand cramp and unknot the forearm muscles that seized up in the process. The Waves MFS: from assault weapon to spa frill in 3 seconds flat.
Boker Plus makes Wenning's combination self defense-massage stick from solid titanium. Easy to hold and effective during combat, the Waves MFS also proves to be a swell acupressure instrument, particularly for application to plantar reflexology zones, trigger points, and acupuncture points. The pocket-sized stick has an overall length of 6" and weighs 5-1/2 ounces.