High-quality material: This is a thick, heat-resistant material built to last. It impresses with its ready-to-drip design and is also environmentally friendly with its permanent, rust-proof stainless steel filter. Paperless stainless steel filters: No more paper filters! No more adding endless quantities to your shopping list or leaving a bleached taste in your coffee. Our filter is made of a single layer of micro-mesh. It won't rust or clog easily, giving you a long-lasting coffee filter without harming the tree. Easy to use: To brew a perfect cup of fresh, delicious, and aromatic coffee, simply heat the coffee filter in hot water and add the coffee grounds of your choice. Then, using your kettle, slowly pour in hot water at the ideal temperature to regulate the water flow and create optimal turbulence in the coffee grounds for ideal coffee extraction. Ultimate brewing control: The scale lines on the bottle allow you to easily measure the required amount—and thus control aroma,