Easier to Grip and Durability The PVC Rubber Lapel Pin Backs are hard rubber so that the clutch grasps the post of the pin or jewelry to ensure that the back does not fall off and the pin or jewelry then becomes dislodged. Rubber PVC backs were introduced into the pin market a few years back. It is occasionally preferred over metal backs due to its easier to grip and durability.
Rubber backings are usually best for heavy wear. They are easy on the fingernails and are longer-lasting.