SMDV Alpha Speedbox-A110AB - Professional 44 inch (110 cm) Quick Folding Dodecagon Softbox with Alien Bees Mount Patented quick-release folding speedring for fast and convenient setup Aluminum speedring and steel rods. Heat resistant to modeling lamp up to 300 watts. Dodecagon (12-sided) softbox with 110cm (44") diameter High Quality Removable DOUBLE DIFFUSION PANELS for high quality soft light! With Alien Bees/ Paul Buff/ Einstein mount adapter