Handy pin backs very handy when you lose your original backs every time. These rubber backs slide a lot harder than the metal ones.
Locking Pin Backs: How to Keep Your Pins Secure - Asilda Store
Rubber Pin Backs - Australia
Rubber Pin Backings
Buy Rubber Pin Backs for Enamel Pins Rubber Backing for Pins Online in India
Blue Rubber Clutches (Backings Clasp) for Enamel Pin Back
50pcs Black PVC Rubber Pin Backs Butterfly Clutch Tie Tack Lapel Holder Clasp Pin Cap Keepers for Uniform Badges Replacements
400pcs PVC Rubber Pin Backs Heliltd Butterfly Clutch Pins Tie Tacks Blank Pins for Uniform Badges Backing Holder Clasp Lapel Pin Enamel Pins(200 Sets)
Enamel Flat Back
Pin Backing, Pin Stopper, Rubber, Metal, Gold, Silver, Black, Enamel Pin Backing, Enamel Pin Stopper - New Zealand
Rubber Pin Backs - Australia