The Winter Adventure Guide: Explore More in Season Four
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Beal Jammy Prusik


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Jammy Prusik

We all know that rappelling is the most dangerous part of climbing. With Beal’s Jammy Prusik, you don’t have to leave anything to chance. Beal created the Jammy with the fear of botched knots and your safety in mind. Constructed from rope with a nylon sheath and aramid core, this sling weighs just under an ounce but adds an extra element of safety to your climbing day.

The Jammy’s recommended prusik knot is a Machard, but this sling can also be used to create a speedy rope clamp for swift hauling. The rope’s material resists heat and damage from friction and is supple enough to grip thinner rap ropes. While the Jammy’s purpose is to up the safety for rappelling or hauling, this sling would not be a wise device to whip on or weight with gear.

  • Light and durable prusik sling for rapping and hauling endeavors
  • High resistance to heat from the friction of rope rub
  • Seam sewn and reinforced by heat-shrunk sleeve
  • Recommended knot uses are Machard and braided Machard
  • Item #BEA001T

[core] aramid, [sheath] nylon
Recommended Use
sport climbing, trad climbing
Manufacturer Warranty
3 years

Tech Specs

What do you think about this product?


>Rating: 5

Rated at 22KN - versatile as sling

I've used it several times
True to size
Size Bought

The short one is always on my harness as my autoblock/prusik. This is rated to 22KN, so unlike a 5mm cord, you can use it as a sling in a pinch. I had to construct a trad anchor with limited gear and used this to basket a chock for a bomber first piece. Dump your 5mm cord and add one of these to your harness.

>Rating: 5

No Problems

Pretty simple piece of gear. Not much to it but works. The rope is easy to work with and catches pretty well. I normally use a hollow block for backing up rapels but switch to this as it’s a little thinner and just looks cleaner and easier to see if it’s dressed properly.

Thanks for contributing to our community, Jonathan. Your reviews are very helpful!


What diameter is the cord?