The Preferred Pack PP4050-W is a semi-automatic wire seal L-Sealer shrinkwrapper that is perfect for midsize volumes. It is a compact unit that can be transported from site to site. One person operation is simple and efficient. Simply move the package into the sealing area, over-wrap and move product into the attached (optional) shrink tunnel. With a very generous 30 inch wide and 40 inch long work surface, the PP4050 can accomodate very large products. Recommended Shrink Tunnel: PP3610.