These are my new favorites. The plastic buckle makes it easier to find metal detectors. In addition, they snap into place very securely. I highly recommend them.
π Premium Plastic Collar Stays - Assorted Sizes in Crisp White Finish
9 Review
𧲠Wurkin Stiffs Plastic Magnetic Men's Accessories and Collar Stays for Stiff N Stay
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Stiffs Wurkin: Premium π Assorted Brass Collar for Polished Style
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π Ultimate Flexibility with Premium Extender Expandable Elastic America Men's Accessories
9 Review