StudioFX SANDBAG Sand Bag SADDLEBAG DESIGN WEIGHT BAGS FOR PHOTO VIDEO STUDIO STAND by Kaezi Photography (Yellow - 4 Pack) Saddlebag design for easy use. Nylon Construction Dual 10.25" x 9.25" interior compartments Can be filled with anything; sand, gravel, even nuts and bolts 4 Sangbags included! SANDBAGS ARE EMPTY AND DO NOT COME PREFILLED WITH SAND OR WEIGHTS..