Petzl Vertex Vent Climbing Helmet Trousers the 25cm is good for

the 25cm is good for smaller diameters like 6-8mm cordage with shorter buries

Rigging Hub PDF information sheet

the outer core tightens on the rope

or to install several attachment bridges (fixed or adjustable) and accessories directly on the bridge (RING

If you've tried replacing your cam on your ART Lockjack and still find the device is slipping on your rope it's time for a new friction plate

Petzl Vertex Vent Climbing Helmet Trousers the 25cm is good forThe VERTEX Vent is one of the most popular helmets for work at height, industry and rescue. Six point mesh liner conforms to the shape of the head for improved comfort. Shock absorption achieved through deformation of the outer shell. CenterFit adjustment system ensures centering and optimal stability of the helmet on the head Ventilation holes with sliding shutters allow the ventilation to be adjusted as needed from the outside Side slots for