The StudioKing SK-SR15 is a reflector suitable for <strong>studio flash units with a 9.5 cm diameter</strong>, such as flash units from the Falcon Eyes SS series and Linkstar MT series. With this reflector you can limit the angle of the flashlight to about 45 degrees. This allows you to give the light more control, because without a reflector the flash light goes in all directions and therefore a lot of light is 'lost'.