I believe mine was to aid in clarity and concentration, and......ah, i forget the other part. I'm kidding.

I also think I spent about 150 baht. Definitely not more than that.

I wear mine when I exercise and believe it does bring me luck. I also wear a cross from silver also bought in Chiang Mai for about 500 baht. I've had both for a few years, both are in good condition.

If you have an amulet to share, great. Perhaps I can learn more about the one I wear.

These are my mum's collection over decades. There are more VDOs on Youtube as well.