Bagkeeper ll IT IS A CAGE for a Dust Collection Separator Patent Pending Go from a can full of saw dust and chips to a Bag full. Just pull out the bag, put it aside to get rid-of later, put a new bag in the can and keep on wood-working. If it is raining or snowing you won't have to worry about getting the can wet and all the saw dust-chips sticking. Not for WATER pick-up