For either free choice or forced use applications on cattle. Easy to load dust bag featuring a unique flicker chamber that assures even spread of dust over animal. Versatile/weather proof loading vent/two-point attachment/steel spreader bar/rope protected edges. Rope protected edges allow for longer wear and extra strength. Versatile - can be used for either free choice or forced use applications. For free choice conditions, one bag will handle 25-50 head.