Reusable gold tone stainless steel filters are environmentally friendly and long lasting. They replace paper filters and are easy to use and clean. 10 to 12 cup model fits most standard cone shaped coffee brewers as well as Krups 8 cup Thermos model 270. The 4 to 8 cup size handles smaller cone shaped baskets. Produces a fuller flavor profile than paper as some coffee oils are allowed to pass through. Safe, non-toxic.