Black Diamond Belay and Rappel Devices

Assisted braking or none?

• Manual (also called tubular or tube-style) devices do not provide any assisted braking

• Simple, lightweight design; easy to use
• Work with many rope diameters and can accommodate single or double ropes
• Some find them slow for rappelling
• Assisted braking devices are designed to lock down on the rope when a sudden force is applied
• One type relies on its design or geometry to provide braking assistance
• Another type uses an internal mechanical camming mechanism to help lock the rope when a fall happens; these are heavier and designed for single ropes

Other considerations

• Suitable for rappelling: Many belay devices also double as a tool for rappelling during descents
• Fits rope size: Consider the thickness of the rope you're using and make sure it fits