Dick's Sporting Goods offers the Century Versys VS.2 Grappling Fight Simulator Bag for $349.99 plus $20 for shipping. That's the lowest price we could find by $10. (However, many stores charge around $400.) While it looks like a goth version of one of those inflatable noodle balloons found outside of used car lots, this is actually a self-defense training tool. It's 5 feet tall and weighs 50 lbs.