Replaceable: This is an assembleable coffee filter cup, made with spiral ribs, designed to be compatible with the V60 style filter system. Conical: Compared with traditional fan-shaped filter cups, this conical design allows for a deeper layer of coffee grounds. Water flows toward the center, increasing contact time with the coffee for enhanced extraction. Large single hole: The bottom features a large single hole that allows water to flow freely, similar to Nel Drip brewing. This enables control over flavor by adjusting the pour speed of hot water, offering customizable taste preferences. Spiral ribs: Internal spiral ribs extend from the bottom to the top, creating channels between the paper filter and the cup. This promotes even water distribution, prevents filter clogging, and allows air to escape during brewing for consistent results. Color: Black / White / Red / Blue (options may vary) Material: Plastic Package Contents: 1 x Coffee Filter Cup Note: Other items not included. Color may vary slightly due to lighting and display settings. Size may vary by ±1-3 cm due to manual measurement.