This is the ONLY cigarette filter tip that's guaranteed to fit Virginia Slims, Salem Slims and Misty Slim cigarettes. TarGard has designed this filter to perfectly fit the most popular brands of "slim" cigarettes. However, this filter will not work with "Super Slim" cigarettes. If you smoke any Super Slim cigarettes then please do not purchase these filters. If you are unsure about whether our Slim Cigarette Filters will fit your brand of cigarette, then please measure your cigarette. If they're 7.5mm, then they'll fit.