ICL's 25mm wire grid IR polarizers are available with 360º rotation stage holders that are mounted on 2" x 3" backplates.  These rotating mounts render the polarizer suitable for use in any FTIR or IR spectrophotometer simply by sliding the mount containing the polarizer into the instrument's standard 2" x 3" slide mount fixture.  The polarizer, which is itself permanently mounted in a black anodized aluminum ring, is easily inserted into and removed from the rotating holder without touching the face of the polarizer.  When ordered with a mount, polarizers can be installed in the mount prior to shipping on the customer's request.