YOU CANNOT PURCHASE A BETTER QUALITY SANDBAG ANYWHERE AT THIS PRICE. WE GUARANTEE IT. Pro heavy duty sand bag. Their unique saddlebag design can be draped over or clamped onto light stand legs, or to boom arms to provide extra stability. With dual 26cm x 23cm interior compartments, these heavy duty bags can be filled and emptied over and over again with sand, gravel, even nuts and bolts. These sandbags will prove to be an integral part of your studio system for years to come.