PETZL BELAY DEVICE GRIGRI is the ideal belay device with cam-assisted blocking, designed for the gym and crag. The GRIGRI sets the standard for belay devices. In the gym or at the crag, it makes belaying easier with cam-assisted blocking. Equipped with an ergonomic handle, providing easy control for a smooth and comfortable descent for the climber. Compact and lightweight, it can be used with single ropes from 8.5 to 11 mm. Perfect for working your project!