Adapts Broncolor Softboxes to Broncolor Flashes_Color coded for easy assembly_The speedring is packed in a soft case for safety._Lightweight_For Softbox (Sold Separately)_Broncolor Speed Ring broncolor_Specifications Weight: 0.88lb / 0.4kg Product Height (in): 1.46 Product Length (in): 7.87 Product Width (in): 7.87 Product Height (cm): 3.7 Product Length (cm): 20 Product Width (cm): 20 Warranty: 2 Years