Computer O-Ring #1

Computer O-Ring #1   Fits: Hockey puck computers with slot on back that use a quarter to remove.  They were common on the Oceanic and Genesis computers.This version also usually only has one button on it that is located in the center bottom.  The computer shown is just one of many that fit this o-ring.     Please note: This is just the o-ring for the computer.  We offer no warranty if you put this in yourself. It is a very easy thing to do but if you screw it up it is on you do not send me back computers to warranty for your two dollar o-ring.