Ideal for illuminating large rooms, the Westcott FJ80 Diffusion Dome expands the flash's beam spread to 360 degrees, creating a shadowless quality of light similar to a bare-bulb flash. Westcott uses a quick-attach magnetic design that makes it a snap to swap out optional FJ80 color gels for creative expression. The FJ80 Magnetic Mounting Ring is included. The dome is also compatible with FJ80 II flashes to create soft, even lighting.