Notch Jet Step Foot Ascender Helmets All lenses have anti-fog properties

All lenses have anti-fog properties and are extremely scratch resistant and highly resistant to chemicals

Can be used on either doubled ropes or a single rope

The D4 has a 240kg (500lbs) Working load limit which means it is suitable for two-man rescue

The three distinct actions used to open the gate are designed to operate quickly and without locking up

Two attachment points to separate the cord ends

Notch Jet Step Foot Ascender Helmets All lenses have anti-fog propertiesToothless Twin Cam Foot Ascender by Notch Unique dual cam design results in lower spring tension and reduced drag Toothless cams eliminate virtually all rope wear and provide increased grip strength on wet, muddy and frozen ropes Lower drag from decreased spring tension provides efficient self tending of the climbing line Fairlead guides rope into cams and helps prevent kickout Ambidextrous, use on left or right foot! This is the smoothest functioning