1954 Chevy Car Horn Button Insert. How about this clear plastic horn button insert for your favorite Chevy? Is yours all weather cracked and not acceptable? Or, worse yet, missing? Here is the cure! Paint the back side to match your color and you are stylin'. It is 2 1/4" where it goes into the horn ring. It does not have the snap ring so you will need to re-use yours. This listing is for 1 piece as shown. We also sell the chrome horn ring.