Check the listing for details. 40 PCS Locking Pin Back Metal Pin Backing, Locking Pin Keeper Clasp For Pin Lock. Condition: New. Listed at 12.90 USD. FEATURES & DETAILSQuality Material: Upgraded locking pin backs are made of quality nickel plated copper, durable and sturdy, they can lock your pins firmly, ensuring that your pins stay secure and in place.Easy to Use: Easily lock and remove pins with the spring-loaded latch design, no tools required, just push the base to lock and secure them, pull to release the lock and remove it. This makes these locking pin backs a great choice for those who frequently wear and swap out pins.Secure Your Pins with Ease: These locking pin backs provide an added layer of security to your pins, ensuring that they stay securely in place. unlike traditional pin backs, these locking pin backs have a unique snap design that prevents keeping your pins from falling off, getting lost.Widely Used: The metal pin backing are suitable for pins, lapel pins, name tags, display books, lanyards, bags, vests, hats, jean button, badge, backpacks, enamel pin and other DIY projects.Value for Money: This product comes in a package of 40, which provides ample locking pin backs, the size of the pins back is 0.4 inch diameter, 0.25 inch height. They are compatible with most standard pin sizes and stylesto use for all your pin needs.CONTACT USWe can be contacted at any time through Ebay messages if you have any questions, comments or product requests. We will respond to you within 24 hours and we do our best to help you out! We encourage our customers to contact us with any questions or concerns! We'd like to be sure you are completely satisfied with your purchase.