["Feature:\r\nSpring Loaded fastener for easier on-off action without need a tool .\r\nNo Small Screws To Mess With. Spring Loaded Pin Keepers Easy To Use & Apply\r\nGreat For Keeping Your Favorite Pins Secure To Your Cut, Lanyards, Shirts, Hats And More!!\r\nGreat for all lapel pins, tie tacks, citation bars, service bars,name tags,and jewelry etc.\r\n\r\nNote:These pin backs are not suitable for thick jackets.\r\n\r\nItem Type: Jewelry Finding\r\nMaterial: Copper\r\nColor: Gold, Sliver,\r\nSize:\r\nTop Diameter: 10 mm/0.4\"\r\nBottom Diameter: 7 mm/0.3\"\r\nHeight: 7 mm/0.3\"\r\nQuantity: 10 Pcs,\r\nNote:1.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid.\r\n 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\r\n\r\nPackage includes(without retail package):\r\n10 Pcs x Pins Keepers."]