"The Puffer R Duster" Bellows Hand Duster (auction is for 1) The Puffer R Duster is the "Professional"s Choice" when it comes to crack and crevice treatments of fine dust products into small areas. This product has a 6-inch extension to treat hard to reach places.To use the duster, fill the tan rubber container (bellows) half-way full with an insecticide dust product such as Delta Dust or Drione Dust. It is also recommended to place a small rock in the duster to help break up the dust and prevent it from clumping. Compressing the bellows will cause dust to escape the metal tip of the duster. Using a duster allows you to inject dust more easily into cracks and crevices or inside wall voids where insects like to hide. We highly recommend purchasing a duster when applying any dust products. Note: This hand duster does not come with an insecticide dust. You will have to purchase the dust separately.This is the newest Style Bellows duster on the market. It is 10 times easier to use then the JT Eaton bellows duster.. Plus the cap fits tight and doesn"t fall off like the JT Eaton duster.. and the bellows works way better then the JT Eaton version. Easier to squeeze thus making it work better.