The paper filters set are mainly used for car body paint repair, 3D printer resin and paint filtration. 5-layer foldable silicone funnel, easy to use and easy to store. 6-inch metal ruler, useful for both measuring and mixing paint. With just one purchase, you can get 60pcs of paper funnels, one silicone funnel, and a metal ruler, saving time and effort., Manufacturer: Akfldms