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Black Diamond Stoppers are the tried-and-true original.

Black Diamond Anodized Stoppers are light, simple, durable pieces of protection that form the cornerstone of any trad rack. This simple and effective shape fits securely around irregularities in cracks and is easily cleanable. Color coded for easy identification, you'll be sure to grab the right nut when the pump-clock is ticking fast. *Sizes 1 and 2 are meant for aid climbing only.

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Black Diamond Stoppers

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Here's what others have to say...

5 5

Must Have.

  • Familiarity: I've put it through the wringer

These are a must have for setting top anchors in New England, and they (a full set) have been just right in the situations that call for them. I'm glad I have them!

Classic Nuts

Classic Nuts

Alex's first aid lead, using only BD Nuts to send Church Bowl Tree- Yosemite.

5 5

Saving lives!

  • Familiarity: I've put it through the wringer

These stoppers are legit! I had to buy a new #8 after I blew a piece, fell past my belayer, and welding this bad boy in there. No better mid size stoppers out there.

5 5

Putting the new #5 to use

  • Gender: Male
  • Familiarity: I've put it through the wringer

Well some how my crucial #5 fell off my set without me knowing it. Though I could use double sets in these smaller sizes I'm not ready to break the bank. Until then its great to have a nice shiny new stopper!

Putting the new #5 to use
4 5

Just got some.

  • Familiarity: I've used it once or twice and have initial impressions

Just got #6 and 8 for christmas and already know im going to love them. Already on my rack. Very solid feeling, wire is heavier too.

4 5

double em up

  • Familiarity: I've put it through the wringer

glad bd lets you buy individuals, as sometimes they stick in cracks too well or you value life too much to rappel off a chockstone. Not much different from other options though I like the HBs a bit better, but haven't had recalls like Wild Country either.

Number 9

Number 9

The number 9 seems to always find it's way into cracks

5 5


These are just classic. Every rack should have a set of stoppers and I would argue that every rack should have these. These were my first pieces of trad pro. Go with these!!

5 5

The Very Best

I love these stoppers! These were the first pieces of pro that I ever bought, in sizes 4-13. The sizes 4-9 are the best and you should double up on them. I made a totally bomber rap anchor using the #7, a tricam, and two cams. They are great for small cracks and I would rather use one of these than I would a pin (even though I don't own any pins). If you're just starting to build your own trad rack, you should get these immediately.

5 5

Premium Pro

Stoppers are wonderful pieces of gear, but the differences between brands are smaller than the manufacturers would have you believe. I like the Black Diamond option because the anodized heads color coordinate for size with the Camalots, which I use as well. This saves me time in sizing gear by eye, and speed is important when you're hanging on a fingerlock, fiddling with stoppers well above your last piece.

A necessary component of any rack.


Baby Mobile

Baby Mobile

So this is the mobile we built for our daughter so that she can learn to place a good stopper before she can walk. She feels that BD stoppers are bomber. The crossbars there are BD nut tools and the centerpiece is a hex.

5 5

Stopper you are So RIGHT!!!!

Oh BD stopper I'm so glad I met her
She proves that simpler is usually better
From number one all the way up to thirteen
The sleek sexy stopper is always my queen
It's hard to say her greatest contribution
But I'd have to say the Clean Climbing Revolution
No longer were pin scars a necessary evil
Instead into a crack a stopper you could weasel
How many falls have been arrested by you?
More than I can remember, that's why my loves true.
And it's not just on the way up that your treat me well.
You also are there when it's time to rappel.
How many of you I've left in the mountains?
So many that I can't even count them.
So... I'll scream it from the summit with zealous conviction
She is the best pro for any constriction.
While some times I must flirt with one cam or two
When I run out ... that's when her loves true.
She's lighter and righter and backs up thin sizes
For the lovely stopper my heart heaves and rises.
Some times at the end of a pitch she's all that I've got
And then at the anchor she happily slots.
I hope that I've made my passion clear
With out my beautiful stoppers I wouldn't be here.