Premium Materials: Both filters are made of PP plastic and nylon filter. They are all food grade materials, non-toxic, harmless, odorless and safe. Operating temperature: within 100. Easy to use and clean: Polypropylene frame features a protruding handle for easy movement and adjustment. It can be washed directly with warm water or added to detergent. Goes in the dishwasher. (Please wash and soak with warm water at first use) 2 Different Density Filters:The two filters have different filter densities, 200 mesh and 400 mesh. Two different densities are suitable for filtering a variety of liquids such as juice, wine, milk, soy milk, oil, etc. Compatible with 5 inch funnels: Designed for 5 inch funnels (can also be used for funnels under 5 inches), fully suitable for different funnels