Sold as a replacement for the one that comes with the Halo Diffuser, the Lastolite 32" Halo Compact 2-Stop Diffusion Fabric attaches to the system's rigid metal frame. The diffuser can be held or mounted in front of a light source, acting like an open-sided softbox to provide a soft, flattering quality of light with reduced contrast. Another frequent use is holding the Halo Diffuser up over the subject's head to tame the harsh midday sun.