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
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 leader or top-rope falls, or while rappelling - improve rope glide through device when taking up slack
FEATURES of the Petzl Reverso 4 Belay Device 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 Effective braking on single ropes ; 8.9 mm Can belay the leader, one or two seconding climbers and can be used for rappelling Independent and simultaneous belaying of one or two seconding climbers in Reverso mode Quick changeovers from Reverso mode to belaying the leader when climbing multi-pitch routes