Pretty handy carabiner
"So I use a few carabiners and carry a decent amount of keys on me between several houses and work... so far this is the only one that has addressed an issue I actually have.... they keys getting tangled and wadded up into a ball.... that black ring spins which is useful to separate the key rings to give them space or you can group them together in the smaller part..... less room for rings to move the more the keys stay together and dont wad up on you..... here's the best part.... if you dont like them.... its $2 so it didnt hurt your pocket buying them.... give em a shot... what have you got to lose?"
