PhotoTrust 8"&times;8" (20cmX20cm) Universal Collapsible Round Studio Softbox Flash Diffuser for On Camera or Off Camera Flash Gun for Flash, Speedlight compatible with Nikon SB-500 , SB-600 , SB-700 , SB-8 For Shoe Mount Flash Units, Held in Place with Built-in Elastic Band Creates Soft, Diffused Light Softens Shadows Silver Interior Increases Contrast Folds Flat for Easy Storage, Set up and fold flat in seconds and store in zippered bag