Stainless steel coffee filter. Brand new, unused. Economical as you can drip coffee without using paper filters! And it's even more delicious than when using paper filters! (This is my personal opinion) The bottom is saucer-shaped, so the main body doesn't get immersed in the extracted coffee, making it very easy to brew. You can brew about 4 servings at once. Please note that the cup in the photo is not included. The coffee beans should be ground medium to medium-coarse, and the roasting level is suitable for dark roasts. Shipping will be in simple packaging due to shipping costs. Please consider this before purchasing! From the product description site: 【Professional Coffee Filter】This is the same coffee filter used in professional coffee machines. The inner layer is made of high-density, ultra-fine metal wire. The outer layer is processed with thick stainless steel material, and the two-layer stainless steel structure extracts coffee oil, making the taste more mellow and rich. 【No Paper Filters Needed】You don't have to worry about the smell of paper filters, and you can bring out the flavor of the coffee. You don't have to worry about running out of paper filters, and you can drink coffee anytime. It also reduces paper waste and is environmentally friendly. 【Very Easy to Clean】The stainless steel mesh part is polished, so coffee grounds don't easily stick to it. You can clean it simply by rinsing both sides. 【Safe and Reliable Materials】The double filter is made of food-grade 304 stainless steel, a safe heat-resistant material.