These SealerSales W-Series I-Bar Sealers are ideal for shrink wrap packaging as the sealers are accompanied with a round wire for cut and seal applications. They can also be used for sealing poly bags as they work similar to a hand sealer. These sealers can accommodate film up to 35" wide and 0.025mm (100 gauge) thick. These SealerSales W-Series I-Bar Sealers have steel construction including the work base for quality and durability.