A durable cast metal heat sealer, not a cheaply made plastic model. Designed to hold up in a production environment. Seals in one easy step and and works great For our 1/4th, 1/2, and 1 Pound bags. Power 110V/60hz Length 16 inches/400mm Sealing time 1-4 seconds depending on heat setting. When we tested at a mid-range setting, our largest bag sealed in less than a second. Features: Low power consumption, adjustable heat settings, ready indicator light with an 8″ long sealing element, The compact design makes it easy to store when not in use. 2 extra heating elements and instruction manual are included in box.