Impulse sealer for PP/PE Bags (plastic film sealer) now available, ~PFS-100 size 4" at * PFS-300 size 8" at ~PFS-300 size 12" at PFS-400 size 16" at Price per piece *OPERATING INSTRUCTIONS* Put the AC cord into the socket. According to the thickness of the bag. Put the top of the bag on the sealing workplace and press down the handle. Sealing time is indicated by red light. After the red light put off for one second, release the handle. Then the sealing is finished.