Petzl VIZEN Mesh visor for Vertex Books It allows to adjust the

It allows to adjust the number of turns on the cylinder every 1/4 of a turn

both sold separately

fell difficult trees using felling aids and special techniques

The Porter also has a detachable waterproof lid and heavy duty top handles

Estimating tree height

Petzl VIZEN Mesh visor for Vertex Books It allows to adjust theFace shield for tree care for VERTEX and STRATO helmets, with EASYCLIP system The VIZEN MESH face shield protects against flying wood chips and shavings. This full coverage shield offers complete face protection while ensuring good visibility. It is easily installed on VERTEX and STRATO helmets, thanks to the EASYCLIP attachment system. Protects against projected objects during tree care work: full coverage shield protects the eyes and face guaranteed