I bought these belts from Lord and Taylor but they stopped selling them and went bankrupt in the process. Tried it and it's perfect. Measure the belt you want to replace (if you're like me) and you'll be fine.
220 Plastic π Collar Stays for Organized Closet
9 Review
π Premium Plastic Collar Stays - Assorted Sizes in Crisp White Finish
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π Ultimate Flexibility with Premium Extender Expandable Elastic America Men's Accessories
9 Review
π Revolutionize Your Style with Fashion Anchor Pack Collar Stays
8 Review