EACHSHOT&reg; Godox 120cm / 47.2in Portable Octagon Softbox Umbrella Brolly Reflector for Studio Strobe Speedlight Flash The opening diameter is 120cm, inside with reflect silver and comes with front translucent diffuser, great for speedlite, monolight, strobe or slave Quick and easy way to produce beautiful diffused light Especially designed for speedlites and strobes Built in slave devices - no messy wires