The Crusader duster (by JT Eaton) allows for the precise application of insecticide dusts or baits granules into crack and crevices, wall voids, and hard to reach areas. Simply fill the White Crusader Duster half full with your favorite dust or bait and replace the lid. Then lightly squeeze the duster to apply the product into cracks, crevices, voids, etc. Squeeze softly and a little comes out. Squeeze hard and a lot comes out. Your hand pressure controls the amount of product applied. If the tip becomes clogged with lint or trash, a small clean-out tool is located on the backside to clean the tip. Get one for your baits and one for your dusts. This product is a MUST for every pest management professional!