A true variable-friction device, the ATC-XP maintains the silky-smooth
feeding of the ATC but ups the braking power. For belaying and
rappelling with 7.7-11 mm ropes, it’s designed with a smooth,
low-friction side and a high-friction side with v-shaped grooves for
three times more friction. An extended central web keeps biners and
ropes properly oriented and helps reduce kinking.