Barndoor attachment and interchangeable lens accessories contain:

1 - Barndoor
1 - Diffuser Dome
4 - Color Filter Gels (Blue, Red, Green, and Yellow)
1 - Honey Comb Filter

The Diffuser Dome and Color Filter Gels magnetically mount to the interior ring of the Barndoor, while the Honey Comb attaches over the lens with a pressure mount.