Neat self defence improvised weapon

[NorthernRaider]

a friend of mine has just come back from the south of France when some of the locals have developed a weapon for close quarters self defence that is highly concealable and if you practice with it it can be quite a devastating tool. Basically its just a long sportsmans sock similar to a football players sock with a snooker or billiard ball in it.
its used like half a bolas, or like a flail, the impact from the ball after being swung in a long sock is quite devastating, more than enough to ruin a muggers day and it has a longer reach than a knife.

No cop can really complain if you keep your luck 8 ball or black ball in your pocket !!