Sturdy: This vacuum sealer machine is made of high-quality abs material, which is and has a long service life. Automatic Vacuum Sealer Packer Vacuum Air Sealing Packing Machine For Food Preservation Dry, Wet, Soft Food Suitable for small commercial, household, fully automatic type, powerful, high vacuum, is a cost-effective vacuum packaging machine Broad application: This vacuum sealer machine can be used for sealing all kinds of food, such as grains, beans, rice, nuts, coffee beans, tea, etc. Usage steps: When using the sealing bag, put the textured side up and the smooth side down, and insert it into the designated groove. Press both sides of the machine firmly hear a "click" sound. Check whether both sides are pressed properly. (If one side is not pressed in, the sealing fail). Then select the mode: "Single sealing" or "Vacuum" Just and use it. Note: When storing the machine, the lid must not be pressed and stored together. (If pressed and stored for a long time, the sealing tape