SMDV Diffuser SPEEDBOX-S65B - Professional 26-inch Quick Folding Dodecagon Softbox Diffuser - Bowens S-Type Mount - Legio Limited Edition Patented quick-release folding speedring for fast and convenient setup. More Durable Steel Rods Dodecagon (12-sided) softbox with 65cm (26") diameter High Quality DOUBLE DIFFUSION PANELS for high quality soft light! Bowens S-Type Mount