There are a variety of brands of cigarettes filters tubes available, but the most popular one is Zen. Zen is a favorite for roll-your-own smokers in America. They are of high-quality and at a reasonable price. The 100mm Full Flavor cigarettes filter tubes are made of rolled evenly and feature a gorgeous vibrant red box. Zen filters are constructed from the highest quality paper and are made with finest precision. They don't break easily, the flavors are enhanced by the process.