Kase Armour K150P Magnetic Frame for 150x170 2mm Filters

he K150P Magnetic Rectangular Frame for 150 Armour Holder from Kaseconverts 150 x 170mm, 2mm thick filters into Armour 150 x 170mm Magnetic Filter Holder-compatible filters. This aluminum frame has exterior dimensions of 160 x 180mm. It includes a screwdriver and four screws.