Petzl Reverso 4 Belay-Rappel Device

This belay/rappel device is lightweight and easy to use. V-shaped friction channels, with asymmetrical side grooves, adapt the rope friction for better control (braking adapted to half, twin and single dynamic ropes). Reverso mode for belaying one or two seconds. Ultra-light design: minimalist construction hot-forged aluminum weight: 59 g A single device for all rope types: effective braking on half and twin ropes (7.5 mm or greater diameter) effective braking on single ropes (8.9 mm or greater diameter) can belay the leader, one or two seconds and can be used for rappelling independent and simultaneous belaying of two seconds in Reverso mode  for swapping leads (team of 2), offers a quick transition from Reverso mode to belaying the leader The V-shaped friction channels: give greater braking power on thin ropes adapt the braking power on larger diameter ropes increase the braking pressure on the ropes in Reverso mode The asymmetric side grooves: increase the braking power for