The Firestik SS204 is a very versatile CB antenna mount. Designed to fit along the vertical door jamb, the SS204 can also be installed on any vertical surface. The Firestik SS204 also is completely adjustable, the stud bracket can swivel a full 180 degrees depending how you install it. The SS204 has the Firestik K4 stud which requires ring terminal coax cable such as the Firestik K8. And of course, this CB antenna mount from Firestik is made of high quality stainless steel for a long lasting life.