Buffer Tube Fan-Out Kit This fan-out kit is designed for indoor use only (0~60 C rating). It accepts a 3.0mm buffer tube and fan out to twelve(12) 25" long 900um diameter furcation tubes which are color-coded to match the fiber color scheme. This buffer tube fan-out kit provides the ultimate solution for those users who want to field-install connectors. Each FOK kit contains the following items: FOK bottom-------1 pcs FOK TOP---------1pcs Color coded assembly for 1 to 12 fibers----1pcs Heat-shrink tube------1pcs Each FOKs in a plastic bags with instructions.