Nice packing-Rubber backs are packed in a transparent plastic box,Each box contains 50pcs rubber pin backers. Pin Locks suits for lapel pins, badges, hat, tie tacks, name tag, toy pins, citation bars,etc.Super practical-These PVC rubber pin backs are totally awesome! because they keep the pin from moving around.The soft rubber pin back effectively isolate sharp metal pins and ensure they remain in place，Great replacement for pin clutch backs.If you wear lapel pins on the reg. Throw away the metal backs that don't grip and replace them all with these rubber backs that won't fall off, leaving your pin lost on the ground somewhere. They have great grip, and don't loosen with time.the PVC pin back is tight and they are not easy to fall off; Each pin back has a hole which is compatible with the tie tack pin，The rubber pin backs are only compatible with the pin 1-1.2 mm in thickness, it can't fasten if the pin is too slim.Put the pin in the rubber pin backing, your items will keep pinned securely. With smooth opening and closing, yet the pin back clasp is well secured because of the pin backs locking feature.If there is any problem or these Pin backings does not fit your, just contact we will return full refund to you. Product Description Do you wear accessories on clothes or backpacks? They will increase your personal charm. If you can wear lapel pins, you can consider our rubber lapel pin backs. They have a good grip and will not relax over time. It is worth a try! Easy to use The PVC pin back is tight and they are not easy to fall off. Each pin back has a hole which is compatible with the tie tack pin. Put the pin in the rubber pin backing, your items will keep pinned securely, with smooth opening and closing. The clutch is 11mm in diameter and fits snug that and makes the clutch easy to remove from the pin. Useful to you These PVC rubber pin backs are totally awesome! because they keep the pin from moving around. The soft rubber pin back effectively isolate sharp metal pins and ensure they remain in place, great replacement for pin clutch backs. Throw away the metal backs that don't grip and replace them all with these rubber backs that won't fall off, simple and convenient. Widely used If you love craft projects, sewing fabric, making corsage, name badges and more. These rubber pin backers are a must-have for your uniform, holding badges or name tags. Pin Locks suits for lapel pins, badges, hat, tie tacks, name tag, toy pins, citation bars, etc. The back of the pin clutch is also suitable for all lapel pins, tie clips, citation bars, service bars and jewelry. Specifications Material: PVC rubberColor: BlackQuantity: 50pcs pin backs(without pins)Size: 11mm/ 0.433inch in diameter, 7mm/ 0.276inch in height Tips The rubber pin backs are only compatible with the pin 1-1.2 mm in thickness, it can't fasten if the pin is too slim