The jump rings in this metallic color keychain pack were so tiny they were useless. I believe they were only about 2mm outside diameter. Aside from the jump rings, this is a pretty good DIY dangle keychain kit. The color choices in each of the three sizes focused on silver and gold finishes. This makes sense as they are the most commonly used. All three sizes can be used, from small medium to large medium. There weren't any very small or very large, which are a bit more difficult to use in design. I make keychains as family gifts and luckily I have other jump rings that can be used with this set.
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