What is the Croll primarily used as?

• A. Rope clamp
• B. Chest ascender (ventral)
• C. Descent device
• D. Foot loop

Answer: (B)

A Croll is a chest (ventral) ascender for rope work. It is worn on the chest and the rope runs through its cam mechanism, so as you push with your legs and slide the device upward, the cam grips the rope and prevents downward movement. This chest positioning makes ascent efficient and keeps your hands free to manage other gear, balance, and control your progress. It’s specifically designed for climbing up a rope, not for lowering or for use as a simple foot loop, which is why its primary role is upward progression from the front of the body.