This sandbag comes with 3x 1kg ready filled weight pouches it can be used in a variety of situations eg to add weight to your light on your pantograph when a small modifier is being used or the spring is too strong and lifts the light to add stability to a tripod or light stand or to counter balance a boom arm the three pre filled bags contain separate sealed sachets of safe marine quality galvanised metal ballast allowing you to adjust the weight from 1kg 3kg strong plastic clips allow th