Polaroid Universal Studio Octagon Soft Box Flash Diffuser (7" x 7" Screen) For The Nikon Speedlight SB-400, SB-600, SB-700, SB-900, SB-910 Flashes Held in Place with Built-in Elastic Band, Attaches In seconds &lt;&gt; One size fits all Creates Soft, Diffused Light &lt;&gt; Silver interior lining that increases contrast Softens Shadows Use without the diffuser front for a bare bulb effect Folds flat to conveniently fit in your gear bag &lt;&gt; Comes With Carrying Case