The gobo holder is placed with the glass gobo into the receptacle on the projector. To align the projected image the holder can be rotated freely and is fixed with a knurled screw. Material: turned aluminum part. The gobo holder is compatible with PHOS 25, PHOS 45, PHOS 65 and PHOS 85 LED projectors with Tele Booster, for indoor and outdoor. Not suitable for PHOS mini and PHOS 20.