Didn't think I'd care about a bottle opener until I was three drinks deep at a tailgate with nothing to pop the caps. This little thing is lightweight enough that I forget it's on the cooler, and it hasn't slipped off once.
Violet★★★★★
Clips right onto the MOLLE webbing on my cooler so it's always there when I need it. Opened a dozen bottles at the last tailgate without any slipping or bending. Lightweight enough that I forget it's attached until someone asks for a bottle opener.
Abigail J.★★★★☆
Clipped this onto the outside of my cooler and it's stayed put through two camping trips, no rattling. Opens bottles cleanly, though the finish on the edges was a little rougher than I expected.