Metolius F.S. Mini II Carabiner

I haven't used it for climbing yet, but its a great size for a key set and it's always nice to have another bail biner.

I like these because while they're significantly smaller, you clip in just as easy as with a large biner. And I use one for my keys!

On their own, these biners are great! I use them with Metolius cams and they're perfect; on my key ring, and I like to have some extra around for bail biners and miscellaneous things. But between the Camp Nano 22's and this, I much prefer the Nano's. They're just a tad bit lighter and a slightly larger gate makes them just a bit easier to use. These are still great carabiners, but they're not best.

FS mini:
These carabiners match flawlessly with my mastercams making for a super light rack. Even though they are small I've had no issues quickly clipping in to them.

I use these for a lot of different things. I have one on my keys two on my hammock and a bunch on my cams and Quickdraws. They're small light and have a smooth gate. They're a little hard to clip but you just have to get used to it. I prefer the CAMP nano but these are great too

I've got these on my fishing kayak to help with rigging rods/anchor/tackle, and I have heard of people using these on rafts or driftboats too. Small, inexpensive biners are almost as versatile as duct tape

I use these color coded on my x4 cams. They are perfect for that because they are cheaper than alot of other color options and lightweight. They are definitely smaller than most carabiners you'll get, but for just racking cams that's preferable to save on weight. I use alpine draws on all my cams so it's not like I'm using these biners for running the rope through or taking falls

I got a few as racking biners, but they're too small for even that! I find them difficult to clip/unclip from my harness/rack loops. When I was hanging off a crimp, and trying to jangle my blue X4 off my gear sling, I decided that I was done with them. There are better small/light options out there that out perform this biner.

When I have to bail, I will be leaving these behind on the mountain.

These are great for hanging your hammock from. They're smaller than most carabiners with this power and very lightweight.