Yes, since they're all handmade, but it's usually not a huge difference in size.

I purchased the Hill Tribe sticks and made 2 bracelets over 3 months ago. I kept one and sold the other. As of today, neither the one I wear constantlly or my customer's has shown the least bit of tarnish compared to other pieces I made in the same time period. I do keep them fairly protected and polish things often when they show tarnish, but I have not had to touch my bracelet yet,