Magnetic pin backs are a versatile solution for displaying your enamel pin collection on the refrigerator, magnet plate, or in any metallic setting. Especially if your pins tend to lose their brooches. just remove the pin backs and slide these magnetic pins over the pin back posts, then display them on a magnetic bulletin board or refrigerator. It 't leave any holes and ruin the board or clothing. These magnetic pin converters prevent favorite pins from ending up in drawers, perfect for pins from your local store! Highly recommended as a pin collectors. Made of high-quality metal material, our magnetic needle backs are built to last. Rest they will not damage the surface of your pins when used correctly. Your cherished pins will remain in pristine condition while being securely held in place. Each package contains magnetic metal pin backs in silver color, ensuring compatibility with most enamel pins in your collection. Not suitable for children under 3 years of age. Material: Metal colour: silver Package Contents: 20 x enamel 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.