Black Diamond ATC Belay/Rappel Device

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Use the classic ATC (Air Traffic Controller) for lightweight and durable belaying and rappelling performance anytime, anywhere. It features a large surface area that dissipates heat when lowering or rappelling and the smooth handling geometry lets you use it with rope sizes from 7.7 to 11mm. Often copied, never equalled.


  • Unique, smooth-handling geometry
  • Minimalist design is durable in all conditions
  • Large surface area dissipates heat when lowering or rappelling
  • Handles ropes from 7.7 to 11mm


Average Weight 60g
Warning Rock and Alpine climbing are potentially hazardous and dangerous. Any person using our equipment in any manner is personally responsible for learning the proper techniques involved and that the equipment used is designed for the application. The purchaser accepts full and complete responsibility and liability for any and all damages and injury that may result from use of equipment bought from Bivouac Outdoor. Instruction should be sought from professionals in the safe use of this piece of equipment. This equipment is designed for recreational use and should not be used for industrial applications.

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