Nice thick key covers
595058
Nice thick key covers, fits my car, house and mail box keys very well. Must use the little ball-chain loops to hang them though, to keep them mobile on the key ring.
218260
nice and thick. Protect hands very well. Wash well and hold their color.
3466847
The price was low, and the hardware solid.

These things are about as wide as a US quarter: about the size of my thumb.

Keys with small holes will need their own rings, as the carabiner is a few mm thick.
3917522
Great key cover for Chevy key dongles.  I had issues with tripping my unlock, alarm, and charger door in my pocket and adding this cover helped immensely.  The color (red) matches my burgundy Volt almost perfectly, to the point where everyone I've shown it to thinks its a factory piece.  It is a bit of a tight fit, however this is a good thing since it makes it feel extremely solid when on the dongle.  The flip out key is also not obstructed at all with the cover installed.  My only concern with this cover is the way it snapped together, I'm afraid it may crack or the snaps may break when removing it to replace the batteries.  Since it is plastic it is also getting minor scratches and dents from keys and change in my pocket.  Overall I would probably buy again.
2766546
I found these easy enough to install, though keeping them straight can be a bit of a challenge. If I have any complaint it would be that they are a bit thick and thus have noticeable edges which can be disconcerting. So far however they are remaining well stuck. One must definitely clean the keys first using denatured alcohol. It is critical that the surface of the keys not be oily at all.
4362536
i really love this cover for my keys. fits perfectly fine. i can use all the buttons no problem. its a very pretty purple color and protects the keys like it should. would deff. recommend
4222783
I use these for clipping keys to key-rings and key-rings to to each other.  They are very strong yet easy to open when you need to separate the items that are being held together.  This particular size is about 1 1/2" long and some keys do not have a sufficiently large opening to accept the diameter of the clip, but most house keys work fine.  While these are a bit costly, they are very well made and are of good quality.  I would recommend these to friends.
357198
These key caps are really great for allowing more LED light through, while changing the look of your keyboard, quite a bit. I used them on a Red Dragon keyboard, without any issues. I'd highly recommend them. They seem to be holding up well, as they're on my work keyboard.
3672174
Love these key covers!! They are so cute and they fit my keys very snug, they are a tad of work to get on the keyring but so worth it!! They are VERY strechy so they can fit over the head of the key and the holes line of perftly! They glow awesomly and I can easily tell between my house and basement keys without having to fumble!
152757
If your keys have the plastic coating on the head as on car keys then this wouldn't work well unless you only want to put one key in the holder. There is not enough room for thicker keys if you put more than one in  It's made for just regular sized key with minimal thickness.
2530867
Love these..  cute and make it easier to tell keys apart.
812206
HEAVY DUTY GREAT FOR WORK WHERE I USE MULTIPLE KEYS
2762093
Thick, nice quality. Have yet to try these but will update when I've properly tried them out
3690642
These are the ones. They are stretchy and will fit just about any key. I first went to local hardware store and none of the ones they had worked, they were all to small or really cheap quality. Buy these, you can't go wrong.
2031806
Work great for keys . Wish they were a little flatter to fit the apple remotes the kids keep losing. Was able to fit one under a stretchy skin remote cover for the wii and apple remote. Husband not happy with the lump under remote cover- but at least we know where remote is !
2449354
Great covers, shipping faster than expected. Will buy again.
950405
Great keys at a very good price. Would definitely purchase this again. We used to hang from the ceiling for a Harry Potter themed party and used some to make necklaces. There are a variety of sizes ranging from large to medium to small. The material used is good and the keys feel like a good heavy metal. The color is very good and makes it have the appearance of a vintage key.