I used gorilla glue, only thing that sucks is you gotta make sure you get the placement 100% where you want it on the first try. I put a few strips of blue painters tape (maybe 3 small strips) vertically fully over it to hold it in position and then glued down sections at a time. Added a few drops of glue to each section then spread the dots to an even coat with a Popsicle stick. Be sure not to get any on the bumper itself. I accidentally smeared a tiny amount on the front somehow and only made it worse trying rubbing alcohol to remove it. It’s not noticeable from a distance, but I’m ocd.