Cold Steel 91SPB Pocket Shark. The Cold Steel Sharkie Pocket Shark Pen is the biggest, baddest, permanent marker around! Superficially, the Cold Steel Sharkie pen shares many features common to most markers, but appearances can be deceptive. For starters, it's made from the glass-reinforced plastic, Grivory, the same tough material used in the Cold Steel Nightshade™ series, 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. It's easy to carry too. Just clip it to a shirt or coat pocket, or carry in your purse, pack or brief case. Don't spend another day without one!
Specifications: Thickness: 7/8"; Overall: 6 1/4"; Material: Grivory w/ Felt Tip Pen.