Polaroid Mini Universal Studio Soft Box Flash Diffuser (3.5" x 3.5" Screen) For The Canon Speedlite 580EX, 580EX II, 430EX, 430EX II, 270EX, 320EX, 600EX-RT 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