Flash cover for Pentax K-01 for attaching gels to the front of the flash. I'm using it to turn the camera flash into an infrared trigger (you can use processed, unexposed negative film or a combination of red and blue filters in place of an infrared filter) The flash is not designed to take filters and it can possibly cause problems with the flash overheating.The model is upside down, flip it over before printing. No support material should be needed.