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Bionic 8 Belay Device

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Bionic 8 Belay Device

For a scant 2.4 ounces, the Mammut Bionic 8 Belay Device lets you belay or rappel with any diameter rope, including twin and half rope setups. Mammut built this classic, simple device using hot-forged I-Beam technology that gives it an impressive strength-to-weight ratio.


  • One of Mammut's lightests figure-8 rappel devices
  • Universal rope compatibility works with any rope
  • I-Beam construction lightens the device without hindering strength
  • Item #MAM0165
figure 8
Rope Diameter
Recommended Use
Manufacturer Warranty
2 years