Sandbag for Flood-control,Emergency sandbag,water-preventing sandbag, environmentalnon-pollution, best newest product for flood Sandbag for Flood-controlEmergency sandbagwater ... drainPreventive preparation of other flood control Store indoor dried, open the out bag for use.When the situation needed ... expanded used sandbag dried naturally which isreusable for the next time. Or, mix the contents with ...