The ATC XP is a versatile belay/rappel device. It features a durable cable, machined windows through the device for weight savings and a high friction mode for a stronger hold. Durable and versatile. High friction mode offers 3x greater hold and stopping power than regular friction mode. Durable cable holds its shape and resists getting caught up between ropes. Machined windows through device for weight savings. Hot forged construction. Accepts ropes from 7.7 to 1.1 mm. 2.3oz.