Finally, a (legal) Brazilian bargain !

Tweezers. Yes, that's right, tiny little tweezers. They're not so cheap in the UK and I assumed they'd cost something like £10 here, maybe more. But we went into a pharmacy and they brought out a cup holding loads of them, going for the minuscule price of 0.7 reais a throw. That's under 30 pence. And decent quality too. So what's the story here: how does Brazil manage to produce this one decent quality product at a great, low price ? Someone please explain to me the peculiar economics of tweezer manufacturing and retailing in Brazil and how it apparently exists in splendid isolation from every other (poor quality, expensive) product here.