They match the size of the brooch pin backs and can be attached by folding down the four tabs on the reverse of the brooch pin findings.
20 Pin Badge Butterfly Brooch Backs With Pins Gold Tone Lapel Pin
1983 Vintage Tiffany & Co. Paloma Picasso Hugs Kisses 18k Gold XXXOOO Brooch Pin
48 Set Pin Badge DIY Button Maker Brooch Pin Making Machine Starter Kids Gifts
20 Pcs Pin End Caps Brooch Pin Stick Backing Brass Lapel End Pins, Silver
18mm Brass Blank Cufflink Kit-12Pcs(Silver Tone/Gold Tone/Gunmetal)
16mm Brass Blank Cufflink Kit-12Pcs(Silver Tone/Gold Tone/Gray Black)
