Designed for experienced users: 
- hand motions are the same as with classic belay systems: both hands on the rope. A fall is stopped by tightening the hand on the free end of the rope. 
- it may be optimally used on all 9.4 to 10.3 mm dynamic single ropes (possible for 8.9 mm to 11 mm ropes)
- diagrams for rope installation engraved on belay device (interior and exterior)
- compact and very light at 170 g
Assisted braking: during fall arrest, the belayer holds the brake side of the rope, the cam pivots and pinches the rope, increasing the braking action until the rope stops sliding
The GRIGRI 2's design allows for better descent control. One hand holds the rope and the other uses the handle to unlock the cam. The patented handle design allows a very gradual release of the rope.