Petzl FIXE Compact Versatile Pulley Colour:Yellow protects the energy absorber from

protects the energy absorber from abrasion or contaminants while allowing for regular inspection of the absorber

attached to the helmet with a mounting plate (included)

Furthermore

Weight: 100 g

It has ventilation holes with sliding shutters to allow airflow through the helmet

Petzl FIXE Compact Versatile Pulley Colour:Yellow protects the energy absorber fromVersatile and compact, the FIXE pulley allows quick installation onto the rope. Fixed side plates allow quick installation and coupling with a rope clamp Designed for hauling systems and deviations Sheave mounted on self lubricating bushings for good efficiency Specifications: For use with OK or WILLIAM type carabiner Available colours: Yellow and Black Rope compatibility: 7 to 13 mm Sheave diameter: 21 mm Ball bearings: No Efficiency: 71 % Maximum