Polaroid Universal Gel Soft Box Diffuser (Includes Blue, Red, Green, Amber, Yellow & Pink Gels) For The Canon Speedlite 580EX, 580EX II, 430EX, 430EX II, 270EX, 320EX, 600EX-RT Flashes Provides Soft, Diffused Light Includes 6 Colored Gels - Blue, Red, Green, Yellow, Amber, Pink Attaches With The Included Velcro Adhesive Tabs Or The Optional Polaroid Clinch Band (Sold Separately) Approximate 1 Stop Light Loss Dimensions: 3 3/8 X 4 (inches)