PETZL RACK - Brake bar descender for long descents

RACK is an easy-to-use caving descender. It can be used with 9 to 13 mm diameter low stretch kernmantle ropes (on one rope strand) or with 8 to 11 mm low stretch kernmantle ropes (on two strands) to facilitate long descents over 80 meters. The brake bars are replaceable to prolong its useful lifetime.