Strong Magnets and Secure Hold - The magnetic pin back is a versatile solution for displaying your enamel pin collections on refrigerator, especially if you have pins that tend to lose their pinbacks. Easy to Use - Just remove the pin back and slide these magnetic one over the pin, then place them on magnetic bulletin boards or fridges to display. Great Gift Idea - These Magnetic Pin Converters prevents favorite pins from ending up in drawers, worked perfectly for pins that got from Disney and local shops! It's a highly recommended gift option for pin collectors. Durable Material - Crafted from high-quality metal material, our magnetic pin backs are built to last. Rest assured, they won't damage the finish of your pins when used correctly. Your cherished pins will remain in pristine condition while being securely held in place. Generous Quantity - ensuring compatibility with the majority of enamel pins in your collection. Material: Metal colour: gun black Package Contents: 30 x pin backs Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.