The surfaces are removable, reversible sleeves that slip over the diffusion disc. Silver offers high reflective qualities that render a snappy high-contrast look with a cool color bias. Just the opposite, the Gold surface reflects a very warm quality, similar to late afternoon or sunset light. The Black fabric subtracts light from the subject and can block out unwanted light or reduce reflections on shiny or reflective surfaces significantly. Finally, the flat White surface provides neutral reflectance with a soft quality of light.