Welcome to BF! Also...+1 on the thoughts above. In addition to that--you’ll find cheap, thin, skimpy little rim bands and more costly, wider, thicker, more substantive ones. When you compare the cost of the “good ones” to the misery they save you from or the cost of other components, they’re still cheap. Bearing that in mind, get the best ones you can find. It’ll be money well spent.