I actually bought this so that I can put the seats down in my car and this let's me roll my cooler into the back without hitting a lip. I use the cooler almost daily and it is a real struggle to get it all the way in without this. This has been a game changer for me. It does smell strongly of rubber at first, which I don't think would usually be a problem since it's intended for outdoor use, but I just let it air out for a few days and it's fine.