I bet it's a little heavier than what you bought only because they don't sell this stuff in rolls less than 330 feet. It's woven rather than welded together for more strength, it's substantial enough to be a decent barrier, and with barbed wire on top, people would be reluctant to climb it. And you can plant ivy or vines on it too, to turn it into more of a screen.
Hm...vines, and also beans. Did that with the dogs' fence. Worked well! But ivy would be rather more permanent... ;-)