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Black Diamond Micro Stoppers

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Size: 1

The Black Diamond Micro Stoppers offer versatile thin crack protection for free climbers and aid climbers.

Trapezoidal in shape, these micro climbing nuts have a subtle curve allowing for placements in almost parallel cracks, but can still work around crystals and other minor lumps, bumps and irregularities. Each Micro Stopper is equipped with a durable, galvanised steel cable.


  • Copper/iron mix in heads provides bite in thin placements
  • Patented swage is stronger, more flexible and less prone to fraying

*Sizes 1 and 2 are for direct aid climbing only


Number Colour Size - Depth x Long Edge (mm) Strength (kN) Weight (g)
1 Grey 3.7 x 5.1 2 4
2 Yellow 4.6 x 6.5 3 7
3 Green 5.1 x 7.5 5 10
4 Blue 5.9 x 8.4 6 13
5 White 7.4 x 9.4 6 15
6 Red 8.8 x 10.04 8 21

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