The Armour Holder kit includes the Kase 100mm Armour Magnetic Filter Holder and 95mm Armour Circular Polarizer. The CPL attaches magnetically to the round opening of the filter holder and can be rotated independently thanks to a cog wheel on the outside of the filter holder.
The holder kit includes one 100x100mm and one 100x150mm filter frame that are compatible with 1.1mm and 2mm thick filters. Once the filter is installed the frame attaches magnetically to the holder, allowing for quick and easy filter swapping.
Also included in the holder kit are 77mm and 82mm adapter rings for the Armour system, as well as two step rings (67-82mm and 72-82mm) and a lens cap.