s. please check the pins you're buying to confirm how many posts they have. this item is an add-on and can only be shipped with other items.
40pcs Locking Pin Back Metal Pin Backing, Locking Pin Keeper Clasp
Locking Pin Back – Nutmeg and Arlo
The ultimate guide to enamel pin backs
Magnetic Enamel Pin Back – MarshMeollow
Free with purchase over $50 USD using code FREE50 at checkout., Never lose your pins again! Perfect for the pin collector and for anyone who loves
Deluxe Locking Pin Back [2 PACK] (Gift)
Gunmetal Locking Pin Backs (2) - Noir Voyage®
Locking Pin Backs - 10 Pcs – Mark Well Accessories
Metal Locking Pin Keepers - 8 Pack - 34% Off
Brought an enamel pin, that you absolutely love, pin it pride of place only to lose it? Don't worry I've been there! These secure locking pin backs
Secure Locking Pin Backs
Locking Pin Back (pack of 10)
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EXCEART 10pcs Locking Pin Backs for Enamel Pin Enamel Pin Backs Locking Supplies Pin Keepers Locking Clasp Pin Backing Pin Back for Crafts Pin Backs
20-100x Locking Pin Back Locking Pin Keeper Clasp, Lo Metal Backing Brooch O6R5