This sifter confused me. I use it in my garden now to mix up plant foods and chemicals. It does come with a neat screen thing that does not screw onto nor adhere to the sifter in any way. I still do not know if it is supposed to go on there somehow but I found a use for it. It makes a wonderful duster. I needed a way to spread D.E. onto my irises, evenly. I used the cup from the sifter filled with DE and tapped it onto the Duster. It make a lovely, even sprinkling of the bug killer.