Trying to figure out what this kid's toy from the dentist is. I tried to look for it online and the only thing that looked similar was a fidget toy/spring like this:
Except this is just a solid piece of plastic. I thought maybe it just needed to be pulled apart, but it broke in half when I tried.
Maybe it's a spring that somehow fused together? No idea what else it could possibly be.
Tell them to take their work out of your kid's mouth and issue a refund!
OP broke it, so no can do under the "you broke it, you bought it" rule.