Weston part 30-0008-K. Single Pack of 50 foot long by 8 inch wide rolls. 3 layer construction, boilable. Fits all Tilia FoodSaver, Deni, Rival Seal-a-Meal, Black & Decker, Vacmaster and Cabela vacuum food sealers. Works out to 30 cents a foot versus genuine Tilia at 54 cents a foot. Made of 2-ply, 3-mil nylon with a layer of polyethylene mesh. Manufactured by Weston Pragotrade.