It's a scam
I bought Hematite Adjustable Magnet Spinning Ring. It's not magnet at all, also it's not adjustable. The price is too high for what I got. Probably a scam. Edit (since I can't reply): You cannot write "magnet" in the name if it only LOOKS like a magnet. Also, I can't adjust the size of the ring using only my fingers, I try but it just goes back to its normal size. It's too big for my fingers.