UltraSource Impulse Manual Hand Sealer with Cutter, 16" 16" sealing element that seals most Polyethylene/Polypropylene type materials Creates consistent, air/water right seals every time Preserve the freshness and flavor of food products, or create a waterproof barrier for moisture-sensitive items Adjustable timer creates perfect seals for varying bag thickness (10 mil thick maximum) Includes cutter for sealing and trimming poly bags in one step