It's good. It accomodates standard keys, but not quite te longer ones. Adding 4 keys requires using washers since one of them rubs on the clip rivets. The washers are included, so that's not a problem.
I think there are better key organizers on the market, with more width options and washers. This key organizer can fit 4 small, thin keys. Or 1 big old key and 2 small. Otherwise it will either not fit or it will be too loose. And the keys are loose anyway, there is not enough washers to secure the keys in place. Most key length don't really fit inside between the bars, and it will stick out. If you have some washers at home, you can put it in, and maybe it can redeem itself, but I bought a different key organizer, and it was waaay better out of the box, so don't waste your time with this.