Softbox is designed to diffuse a strobe flash, giving you better even lighting. It comes with a silver reflective interior and a flush front face. It"s necessary in any professional portrait studio. Specifications: MODEL: SB-BW120 Item size (diameter): 140cm/55Inch Mount type: Bowens Shape: Octagon Aluminum Ring Adaptor NOTE: The strobe head and light stand is not included Package Content: 1 x Octagon Softbox 1 x Inner diffuser 1 x Outer diffuser 1 x Bowens Mount Speedring 1 x Carrying bag