[Name]: Magnetic Card Cap [Size]: 15*10*5 [Product Weight]: 64/96/160 Grams [Material]: Iron [Color]: Silver Specifications: POWERFUL MAGNETS AND SECURE HOLDING - Magnetic Pin Backs Are A Versatile Solution For Displaying Your Enamel Pin Collection On Your Refrigerator, Magnet Board, Or In Any Metallic Setting. Especially If Your Pins Are Prone To Losing Their Backs. Easy To Use—simply Remove The Original Pin Back And Slide These Magnetic Tiles Onto The Pin Back Posts And Place Them On A Magnetic Bulletin Board Or Refrigerator For Display. These Magnetic Pin Changers Prevent Favorite Pins From Ending Up In Drawers, DURABLE MATERIAL - The Backs Of Our Magnetic Pins Are Made Of High-quality Metal Material For Durability. Rest Assured They Will Not Damage The Surface Of The Pins When Used Correctly. Your Cherished Pins Will Remain In Pristine Condition While Staying Securely In Place. Sufficient Quantity - Included In Every Pack Package Included: 20*magnetic Card Cap Or 30*magnetic Card Cap Or 50*magnetic Card Cap