1/2 wide x 30 foot long Teflon / PTFE tape roll with adhesive backing. Fit virtually all FoodSaver, Weston, Cabella's, Nesco and Seal-A-Meal vacuum sealers, as well as most models of hand / impulse heat sealers;Replaces deteriorated or burnt-out Teflon tape, which is a crucial barrier between the heating element and the bag. Old tape causes poor bag sealing and can lead to a broken heating element and a broken sealer;Tape may be slightly wider and longer than necessary, allowing for broad compatibility. Strip should be replaced when appearing warn, discolored or if sealing isn't perfect;Just peel tape from the roll and place on the correct area (you may need to clean the strip location before placing the new piece of tape). Over the wire for vacuum sealers, under the wire for impulse sealers;Ideal for virtually all FoodSaver models including 4800, 2244, 3240, 4440, 4865, 3880, 3460, 2840, 3840, 3835, 2440, 2450, 2860, 2240, 2840, FM2000, FM2100, GameSaver, Professional, and many more. Great for Weston Pro 2100, 2300 and more