The Bunn Coffee Filters, 100 Filters/Pack (Set of 10) are a great addition to any coffeemaker setup. They are a fine choice for anyone who owns a 10-12 cup Bunn coffee brewer. This package consists of a hundred filters that are identical to each other. Each filter is made from top-drawer filter paper that serves to lend it selective permeability, so that liquid coffee passes through, but bitter oils and sediments are trapped. The Commercial Coffee Filters, 1000 Filters/Carton from Bunn have a flat bottom and are white. Each filter has a design that ensures it does not get displaced during use.