Stinger Roadkill RKFR5768

Ring No. 1: Used as a seal between speaker and door panel

Ring #2: Used as a seal around the speaker to force sound out through the speaker grille

Ring No. 3: A thick foam pad that is mounted on the outer panel of the door just behind the speaker to counteract standing waves (a speaker plays as much sound backwards as forwards)

2-pack: 144.78mm & 172.72mm (5×7″ & 6×8″)