this studioking flash umbrella ubt83 is made of a white, translucent (diffuse) fabric. the flash umbrella can be used to reflect soft light. besides that it has the possibility to flash through material to create a softbox effect. compared to a softbox you will have slightly more loss of light. the studioking flash umbrellas are solidly constructed. studioking has a wide assortment flash umbrellas available in the following sizes: 100 cm and 120 cm. the tubes have a diameter of 8 mm, so the umbrellas can be used for most studio flashes and continuous lights. features: studioking umbrella ubt83 diffuse white 100 cm tube diameter 8 mm solid construction can be used for most studio flashes and continuous lights foldable and easy to carry