Tight rubber pin back: the PVC pin back is tight and they are not easy to fall off; Each pin back has a hole which is for tie pin. Specifications: Material: PVC.
100 Set Tie Tacks Blank Pins with PVC Rubber Pin Backs for Crafts Silver Black
100 Set Tie Tacks Blank Pins with PVC Rubber Pin Backs for Silver Black
50 Set Tie Tacks Blank Pins with PVC Rubber Pin Backs for Women Jewelry Ornament
100 Sets Tie Tacks Blank Pins with Clutch Back , Butterfly Clutch Metal Pin
