This is my belay biner!

It's nice and functional to rap or belay with and bit smaller than the petzl attache' belay biner everyone has. Comparable weights (69g vs 80g Petzl), size, and strength ratings, but the main difference is that the attache is completly round/circular where as this one is rounded on the inside loop and flattens slightly towards the outside edge. This gives it a slightly higher breaking point compared to the attache' and a lighter overall weight. It does have a bit of an issue twisting around on thinner belay loops (like the newer black diamond models).

Major Axis Strength: 24 kN
Minor Axis Strength: 7 kN
Open Gate Strength: 8 kN

I really do like the attache' for rapelling and belaying, but I prefer this BD one overall. Then again, my buddy is the exact opposite. Either way, I do think these are the two best mini belay biners.

Dependable, easy to use, even with gloves. Trust it all day long.

Never a question of whether it is locked or not. Very dependable. Highly recommended.

Light, strong, and I know it's locked.

I use mine on my PAS and for belaying. They have alot of room in them for rappeling and belaying and the keylock nose never snags on webbing. They are perfect. highly recommeded.

Very very very light carabiner. Personally I prefer something a little beefier, but it has yet to ever flaw me. Gate and screw work great and it is very smooth compared to other biners on the market in terms or rap and belay. Good buy.

My designated abuse biners. If I take friends out for a little TR, these are the best. Strong, easy to use with a single cold or dirty hand, and long-lasting.

I must of got a bad one because the gate and lock don't fit the carabiner very well and it was very very rough right out of the store(the screw lock was not smooth, gate rubs on the nose badly etc...)
It was probably a bad one but thats too bad, it gets a bad review.

This is a fantastic all-purpose locker. Nice, wide opening, solid for anchor building. A pair of these on your TR anchor power point...couldn't ask for more. Perfect general-purpose size, too.

Its small, does its job well, and is easy to lock/unlock. Never had a problem with sticking and wears well, especially for use with belay device. Highly recommended.

These locking biners are perfect for belay and repelling. They are strong and leave you plenty of room to work with. Some people are surprised of how big they are but I think they are perfect, plenty of room.

This thing works perfectly and looks sexy while it's at it.

Great durable biner that's easy to use and has plenty of room (they use the term "mini" very loosely). Great biner for rappelling and top roping. You always know when it's locked and it's lightweight.

I'm new to climbing but this biner seems great, easy to use lock and unlock, lightweight and durable! Works great with my belay device.

i love these things for setting up anchors, light and easy to clean.

very strong biner

if you want a locking biner that is a bit smaller and lighter but can still handle two ropes with ease this is for you. angle or the top gives plenty of surface and room for rope but isnt overly bulky.

I trust my life to these.

Nice and secure, which is extra confidence when you are an occasional climber. Works well with my atc-xp.

Not mini at all, very much full size and much larger than some of the other black diamond ones out there. Very strong (obviously), looks great and works perfectly. I've got my heart set on using these only!

Great biners, I have 10 of them now. Use them for everything. I wouldnt call them mini either, they are full-size as far as im concerned!

These biners are great. They say "mini," but have such a large gate opening and shelve space that you would never notice. The Pearbiners are great for belays with plenty of room to clip in multiple items. Their smooth axis makes them great for the traditional munter hitch belays.

I have only used this ‘biner to lead belay in the gym and it worked fine. I am used to a much larger ‘biner, but I think for sport climbing everything will be just fine. It has a good shape.

This isn't fancy, but it does the job, it is lighweight and great for belaying and rappelling on sport routes.

a bit small for me, i like the quicksilver. i do anchor work and multi- so this just doesn't get used at much. for using with an ATC it is ideal, but its a bit hard to hook up being so small.

Easy use. After about the third pool I rappelled into screw lock... a little stiff but still functioned like it was supposed to.