Eumer plastic tubes are made of an elastic and sturdy material for all types of tube flies. Because of the bright colors, it is possible to tie impressive colorful flies directly onto the tubes. Tubes come in two different sizes and nine colors (small / large). The large and small plastic tubes can be used together in such a way that the small tube fits snugly into the large. Eumer plastic tubes are compatible with all Eumer brass tubes and coneheads. A package consists of 1m of Eumer plastic tubing (single color) and the multiple color packages contain 9-18meters of an assortment of different tubings and sizes.