With a smooth side and a notched friction side, the ACT-XP has multiple friction modes to choose from when you're belaying or rappeling. The ATC-XP's grooved high-friction mode offers three times greater hold and stopping power, while its geometric, fluid design reduces rope kinks when lowering your partner. And with its wide range of rope compatibility (from 7.7 mm to 11 mm), the ATC-XP is perfect for everything from sport cragging to alpine ice.