Box containing 30 activated carbon slim smoking filters. these retain tar and nicotine better than acetate filters. they are reusable about 3 times each.. . mark. tuxedo. . matter. interior: charcoal. ends: ceramic. . presentation. 1 box of 30 activated carbon filters. . specificities. 1 box of 30 smoking active carbon slim filters. activated carbon and ceramic cap. filtering properties: reduces impurities fresher and smoother smoke. filters reusable about 3 times on average. slim format (Ø 6 mm). . dimensions. filtered. length x width (mm). 27x6mm