This fit perfectly in my Pelican case. I'm using the case for camping gear and needed a simple organizer to hold small pieces, a deck of cards and various other small items that you need at the camp site. Absolutely simple to install.
Not sure how much I love it yet, but so far I'm happy with it. Installs easily and makes use out of the otherwise wasted space at the top of my case. I'm using my 1660 more as a heavy duty cargo trunk (without foam). I don't see this being a great idea for quite EVERY application. But for mine, this keeps all the little odds and ends readily accessible instead of sinking into the abyss at the bottom of the case.