VTG Lisner Thermoset Ring

Crafted this ring from a vintage earring which became the setting. The piece is marked as pictured but is partly covered from the base.Base is vintage style with a filagree design and a is Silvertone as u can see in pics. It is New And made In USA and is ADJUSTABLE. I do not know the metal content. Last photo shows other rings I have listed sold separately. Bundle for better deals. Thank u. Comes in ring box.