For starters, it's made from the glass-reinforced plastic, Grivory, the same tough material we use in our NIGHTSHADE SERIES (of knives), and features walls that are 4 times thicker than similar markers. This means it's built for impact and, in a self-defense emergency it can become an efficient Yawara stick for driving off an attacker. Plus, the screw-top cap will stay in place and won't pop off like a regular marker's cap would when you strike a percussion blow, or when obtaining joint locks or submission holds.
ZOMG! One minute I'm thinking, "yes, that marker does looks sturdy", and next thing you know they're talking about "percussion blows" and "submission holds". Well, I guess as long as the cap doesn't come off while I'm braining some poor sap. Hey, Superficial Writer -- come check out this pen trick I just learned!
UPDATE: Jesus, who the hell brings nunchucks to work?
Pocket Shark Isn't Your Average Marker [ohgizmo]
Thanks to Mikey, who may or may not be a pocket pool shark.