First, let me say I have these on all of my quickdraws, and I love them. I use them on the rope side. They are super lite and perfect. I have them on everything from my car keys to the daisy chain on my pack. I use them with my eno doublenest hammock too. So many uses for these things!

As other reviewers have said, these carabiners are quite a marvel, lightweight, plenty strong, and a good price. The gate opening is somewhere in between the Metolius FS mini and the Moses or Oz. I use them for racking cams, which works quite nicely.

I don't take issue with their small size, my main problem with these is that the gate action is funky. The spring starts out with "average" resistance, then hits a "dead spot", after which the resistance increases until the gate is fully open. This doesn't decrease functionality per se, it just doesn't feel nearly as smooth as other options in the weight class.

Overall, a lot of function for your dollar.

Now this is just my opinion, but I think this product is too small for me. I'm sure they are strong enough and the gate works fine. It's just that I have big hands and was not crazy how little they are. Also did not like that I can't mix and match them with my other biners. But if your cool with using just them on your rack, and into the ultra lite weight thing. They are cool. I mostly use them for hanging stuff on my pack.

These puppies are just what I had in mind for racking my C4s. It is impossible to appreciate just how small these biners are online. They are about the size of many of those novelty ("not for climbing") carabiners that you see on car keys or water bottles, and almost as light--and yet they are full strength. I would not use them for regular trad climbing purposes (as in for extendable quickdraws) because I think that it would be too difficult to clip the rope through these when pumped, but I absolutely appreciate them for racking my cams, and am considering buying more for racking my hexes as well.

23g, full strength, perfect proportions. Best racking biner money can buy, and even at full price you can buy a lot of them. Just holing one of these in my hand and I marvel at the amazingness that C.A.M.P. was able to create in these things. Once I get enough these will be at the rope-end of all my draws on alpine ascents. Probably wouldn't want to clip anything over 9.8mm in these, but a nice sexy 9.2mm nano rope would work lovely in these. Paired with WC Heliums (my #1 fave) and you have the greatest rack ever.

I picked a few to give them a try. Kind of had my doubts, but they feel suprizingly solid.
A little small and can be hard to clip, so I wont be using them on my draws or climbing at the local crag. However the reduced weight will be welcome in an alpine setting. Plan on getting more for when Im going into the backcountry and trying to drop the pounds I have to hump in.

I have tried a couple of other biners and this is by far my favorite. I can't believe how light they are.

Some other lightweight biners I have tried were too small... tough to work with especially with gloves on. I am much happier with these. If you ice-climb only the smaller size could be a slight drawback so you probably wouldn't want a full rack of 'em.

It is smaller than a standard biner but seems to be big enough to do the job... great for racking gear, great on quickdraws and general use.

If you are trying to drop some weight from your rack I highly recommend these!