... -FW04 Saddle sand bag 10kgs, For film and Video light stand, dual zipper, versatile and compact sandbags. Double wing, ... bag was designed to secure the base of light stands in order to help create a safe ... changed by adding or subtracting sand - great for stabilizing light stands - use as a boom counterweight3. specificationLENGTH17” (44cm ... sand bag 10kgs, For film and Video light stand, Double wing