UltraSource Tape Bag Sealer, Navy Used to seal polyethylene and other film bags swiftly and efficiently Compatible with UltraSource Meat Freezer Bags for storage and retail displays Twist the remaining length of the filled bag to close the top; push twisted end through bag sealer which applies and cuts the appropriate amount of tape Quick and efficient way to seal storage bags in one easy step Properly sealing freezer storage bags protects the quality and freshness of your product