StudioFX SANDBAG Sand Bag SADDLEBAG Double Zipper Design 4 BAGS WEIGHT BAGS FOR PHOTO VIDEO STUDIO STAND by Kaezi Saddlebag design for easy use. Nylon construction / Double zipper System for extra security 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.