Lock Ring for Nikon Nikkor Z 100-400mm f/4.5-5.6 VR S lens.

A lock ring is included with every lens hood order if required by the lens hood.
Lock Ring for Nikon Nikkor Z 100-400mm f/4.5-5.6 VR S lens. Compatible with Zemlin Photo HZ-103 Series Hoods. Approximate weight: 13g. Order only as a replacement or if using a hood on multiple lenses.