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Function: It extends the size of a shirt collar, making it more comfortable, and can add up to a hal... Show more
Function: It extends the size of a shirt collar, making it more comfortable, and can add up to a half-size in neck circumference. Mechanism: It consists of a metal button and an elastic loop. The loop goes over the existing shirt button, and the metal button then goes through the buttonhole, effectively extending the collar. Appearance: The extender is designed to stay hidden behind a tie, maintaining a neat appearance. Durability and Reusability: Made of metal, it is rustproof, durable, and can be easily transferred between shirts. Origin: The product is made in the U.S.A.