… are made by http://www.alphainnovationsselfdefense.com, in my humble opinion.
They have many variants to choose from and even pink ones for people who like that color.
They are tough and inexpensive. In Germany, the three black ones pictured below are not considered impact weapons by the law according to a statement by the “BKA” due to their simple shape and can therefore be carried anywhere. This is pretty much what our proud government leaves us to defend ourselves with (at least since April 1st 2008) without going to knives (which are hard to use in a non-potentially-lethal manner).
Sounds like a police state to you ? Opinions vary… i have mine.
Beware : Some of Alphas products are illegal in some jurisdictions and countries. Check your local laws before ordering or carrying these items !