Self-braking mechanical device for backing up a repel or belay and can function as an ascender.

Given that safety is always paramount while climbing the Petzl Shunt adds security as a back-up device. Offering a mechanical replacement for self-jamming knots (mechanical prusik) this tool is designed to lock onto either single or identical double ropes in the event of a technical error or slip. Providing versatility the Shunt adds braking security on double rope descents belaying a second or can function as an occasional ascender.