MP-18, a.k.a. The Mighty Mutt, is an easy to operate economical heat sealer. With a price lower than the least expensive fixed nozzle. The Mighty Mutt provides high performance utilizing variable solid state controls for seal, and dwell timing. All these coupled with the ease of use of a retractable machine. The Mighty Mutt’s lightweight design and all metal construction mean portability and durability. The user-friendly entry-level unit is a real winner. A Perfect fit for small to medium shops.