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Sterling Auto Block 13.5''
Sterling Auto Block
Ideal as a back-up while on long rappels, we constructed our AutoBlock from a durable 6 mm cord sewn into a 13.5-inch loop. The AutoBlock attaches from the harness to the brake-hand end of the rappel rope just below the rappel device and works as a prusik or Klemheist knot.
Tech Specs
MBS lbs (kN) 2,810 (12.5)