Westcott 4631D Parabolic White Front Diffusion CoverThe Westcott 4631D Parabolic White Front Diffusion Cover is a front diffusion panel accessory. It gives the effect of a large Octabank producing a high output light source. It is ideal when using strobe style lights. When paired with the 7' Diffusion Parabolic Umbrella, this mix produce a soft and wide angle spread of light. When paired with a Soft White Black Parabolic umbrella with provide a bounced light source that is very evenly lit across the