
We bought these a few years ago and they have lasted a while. My husband has worn all 3 in a time or two. Mostly when trying to solve them. The buttons fall off. His shirts are a size 15.5 and he just needs a little more room.

40 Metal Collar Stays Box
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π Ultimate Flexibility with Premium Extender Expandable Elastic America Men's Accessories
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π Revolutionize Your Style with Fashion Anchor Pack Collar Stays
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