Metolius F.S. Mini II Carabiner

The biners and small and light and really efficient for racking

As plenty others have mentioned, this carabiner works great for climbing uses such as racking gear or as a bail biner. The small size also makes it perfect for your keys or just to carry in your bag for whatever situation may arise.

Great biner for racking and similar size to Nano.

Nothing outstanding, very lightweight and great to pair with Metolius cams for the color orientation.

Perfect size for all those everyday needs that come up like hanging hammocks, holding loose gear, anchoring the dog leash to a spot, etc.

Love is always about perspective. My primary use for these is as a life flight medical provider- weight/size matters, loose objects kill, failure is not optional, and dexterity is scarcely impeded by a nitrile glove. I've since found the little buggers proliferating into the rest of my life- keys, nalgenes, securing rescue/climbing gear, macgyver situations...

Have these replaced my workhorse rack biners? Not at all- they're just too small to be deftly manipulating all day climbing... But that is the point- they are mini biners. If you're looking for a smaller workhorse biner, look elsewhere. If you're looking for a mini biner, these are bomber.

Works perfect to hold your keys. Not too big and not too small.

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'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.