... sandbag,environment-protect sandbag *easy carring *safe *efficient water-control sandbag,changeable sandbag,environment-protect sandbag Anti-flood Sandbag ... 22 kg blocking package for emergency flood control Prior to the use, our absorbing water inflation bag with small size, light ... .8kg before absorbing water; After absorbing the water 3-5 min',the bag weight is 18±3KG water-control sandbag,for flood ...