60PCS Locking Pin Backs Metal Pin Backs Keepers Locking Clasp for Brooches Lapels Badges and DIY Crafts

<b>Description</b><br>
Color: Nickel<br>
Material: Copper alloy<br>
Product Size:<br>
Small pinhole diameter: 0.09cm/0.04inch<br>
Overall height: 0.68cm/0.27inch<br>
Large head diameter;0.93cm/0.4inch<br>
Small head diameter:0.61cm/0.24inch<br><br>
Product delivery packaging list: 60 flat-head card caps (without needles)