Microporous filtration: The cigarette filter features a built-in micropore filter layer that does not contain any chemicals. It is detachable and can be reused after washing. High-efficiency filter: Micropore physical filtration effectively reduces tar and smoke particles during use while maintaining the original taste of the cigarette. Premium cigarette filter: Helps reduce the intake of tar and smoke residues, and may help minimize staining on teeth and fingers. Keeps cigarette butts dry during use. Reusable: Can be cleaned regularly to extend service life. Color: Colorful Size: 57 x 8 mm Quantity: 1 piece Note: 1. Due to variations in measurement methods, a 1-3 cm deviation may occur. Please consider this before placing your order. 2. Colors may vary slightly due to differences in monitor displays and lighting conditions. 3. Package includes only the items listed above; other products are not included.