Often copied but never equalled, the ATC (Air Traffic Controller) is Black Diamond's classic, durable, tube-style belay/rappel device for all-around climbing performance.

This classic design features a large surface area that dissipates heat when lowering or rappelling, and the smooth-handling geometry accommodates rope sizes from 7.7 mm to 11 mm.

• 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 11 mm.
• Weight: 60g.