World Famous - Incredibly popular cigarette holder/filter for over 50 years; The only brand loved and trusted by Hunter S. Thompson! | Cleanable/Reusable - Quickly and easily disassemble to clean. With occasional light cleaning, our users report their filter can last for decades! | Affordable - Over time, costs less than a penny per cigarette to own and use. | Effective - Watch your filter work again and again with the clear mouthpiece or hide the effectiveness inside the black mouthpiece. Comes with both mouthpieces, you choose! | Perfect Fit with Your Favorite Brand - Fits all standard-sized cigarettes. To use with slims, just add TarGard?s Slim Cigarette Adapter (sold separately).