1-inch diameter center provides better control of the staff. More realistic reel and action when practicing technique at full speed. Designed to allow students to spar and practice without holding back, it is always recommended that participants wear padded weapons headgear. ActionFlex™ weaponry is a state-of-the-art, full-contact line including swords, escrima sticks, staffs, nunchaku, and knives, which duplicate the sensation of using authentic weaponry. ActionFlex full-contact products incorporate a unique patented piston system that gives the user complete realism. Made from the strongest materials available, ActionFlex products have proven to hold up during the most intensive workouts. Great for all levels of martial artists. USA/Imported.