Features: 1. Selected food grade 316 stainless steel material, environmental protection and durable, reusable. 2. Multi-layer sintering, high strength, good filtration effect, superior percompatible for mance, suitable compatible for pressurized water flow. 3. The filtration accuracy is 150m, which promotes extraction, so even if it looks the same, the effect is different. Suitable compatible for all kinds of coffee machine handles. 4. High temperature resistance, corrosion resistance, easy to clean, easy to use, is an excellent coffee filter accessories. 5. Coffee pot filter, easy to install and assemble, to help you make delicious and mellow coffee drinks. Specifications: Product name: Coffee filter board Material: 316 stainless steel Diameter: 51mm/53mm/58mm None Thickness: 1mm/1.7mm Density: 150 micron Packing list: x filter screen Note: 51mm Suitable compatible for 51mm filter cups 53mm compatible for 54mm filter cups 58 mm Suitable compatible for 58 mm filter cups The filter is composed of three layers, the upper layer, the middle layer and the lower layer, the difference between 100m and 150m is that the middle layer is different 1. Due to manual measurement, please allow 1-3mm error. 2. Due to the different display, the color may be different, please understand.