Perfect for displaying most coins and I like the clear so it doesn't detract from coinThese mini displays work well.So I was skeptical of these, however they are better than expected. Wicked small so dont be alarmed! I bought them for nephew's knife collection and these, as small as they are, actually hold the knives wicked good. I like that they're clear because then they don't take the focus off the displayed knife. Definitely would buy again if more are neededI use them to display my custom poker chips. They fit well and look nice.These are perfect for coins - sports cards have a slight balance issue - but will work with toploaders, haven't tried graded cards yet - think this size is just too small for those larger itemsI was not thinking they were non-folding but they are one piece. Not a good thing or bad thing, just something to know.Great for coins or cards but not for anything much biggerThese are awesome size for my husbands knife display