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Ball Nuts

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Ball Nuts

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Small, very strong and easy to use.

For protection in thin cracks, where nothing else can be placed. Range of expansion 2:1 in each of the 5 sizes. For cracks from 3 to 18 mm.


Availability: In stock

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For the slim and grim.

Invented in 1987 by John Middendorf and originally brought to market as Lowe Balls, these have become the secret weapon of many aid and trad climbers.

These little wonders will work in small parallel-sided cracks where the only other option is pounding a piton.

Ball Nuts also work in pin scars and small flares where cams simply won’t fit.

Since they weigh so little, many advanced trad climbers keep a #2 and #3 on their rack at all times.

Specifications :

The smallest active protection in the world

Color-coded for fast identification

Narrow depth fits shalllower cracks than traditional camming units




  • Size 1 for cracks 3 to 6 mm. Strength: 7 kN
  • Size 2 for cracks of 4.5 to 9 mm. Strength: 8 kN
  • Size 3 for cracks 6 to 12 mm. Strength: 8 kN
  • 4 Size of cracks for 8 to 14 mm. Strength: 8 kN
  • Size 5 for cracks of 10.5 to 18 mm. Strength: 8 kN

Additional Information

specificityColor-coded for fast identification
Weight1.02 oz
StandardEN 12270

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