Quality Stays via Amazon offers Prime members this Quality Stays Metal Collar Stays 24-Pack
with free shipping
. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping adds $5.48.) That's $6 under the lowest price we could find for a smaller
18-pack with pickup elsewhere. It includes a variety of 2.2", 2.5", 2.75", and 3" metal stays.