SMDV Diffuser Speedbox-S40 - Professional 17-inch (40cm) Rigid Hexagonal Softbox for Speedlite or Speedlight Flash - Legio Limited Edition Patented quick-release folding system for fast and convenient setup 17" Diameter Hexagon Shape High quality Double Diffusion Panels for high quality soft light! Durable Steel rods New (October 1, 2017) SB-05 speedlight mounting bracket