The Beal Birdie is a compact belay device with assisted braking for lead climbing or top-roping, and can be used with dynamic single ropes from 8.5mm to 10.5 mm. It has an all-metal construction, the cam and friction components in stainless steel for great durability. The rope also exits straight out the front, so your rope doesn't end up twisted into a pigs tail. It works in a very similar way as a GriGri, assisting braking should the climber fall, and utilising a similar kind of handle to lower the climber.
All metal construction
Does not twist the rope
Compact and ergonomic for a great handling
Compatible with single rope diameters from 8.5mm to 10.5 mm