</br>Features: </br> Spring Loaded fastener for easier on-off action without need a tool </br> </br>Package Including: </br>30 pcs pin backs </br>Material: nickel-plated copper , Size: 1 cm/0.39 inch in diameter, 0.6 cm /0.24 inch in height </br>It's very simple to use them.Spring Loaded fastener for easier on-off action without need a tool . </br>Great for pins,name tags,Disney pins,etc. You can pin your disney badge on clothes, bags or jeans. </br>Note:These pin keepers are not suitable for thick jackets.