Fidget Spinner - M8 weight

I wanted to have a fidget spinner, but I didn't want to put in three or more bearings. So I designed a spinner which uses M8 nuts as weights, and it works great! It is also a bit smaller than the ones with bearings, making it easier to spin with small hands. I also added a thumb cap, I personally don't like to use it, for you to use. It is designed to have a tight fit, but if needed the parts can be taken out after putting them in. With cleaned bearings, it spun up to one minute and with uncleaned ones it gets up to 15 seconds of spinning.