The Harvest More TrimBin Screens are stainless steel and is a replacement option for the Harvest More TrimBin. Collect pollen while using TrimBin with our innovative screens. Replace your original 150 micron screen or if you wanna get more pollen, try the 220 micron screen! Each screen comes with hardware so you can easily mount your new screen. Screens are made of stainless mesh with a plastic coated aluminum frame.