Size:6x8;8x12;10x15;15x20;20x25cm. Also suitable for refrigerated foods, cosmetics and other bags. Non-toxic, odorless, highly transparent, not easy to break bag leak, play a very good anti-pollution. To extend the shelf life. Preservation and other effects. Scope of application: vacuum packaging bags are used for food vacuum packaging (long-term preservation), vacuum packaging for hardware tools is not easy to rust, but also used for packaging tea, dried fruits, pharmaceuticals, meat and other packaging. Note: Since the sealing edge after sealing may be a certain distance from the mouth of the food packaging bag (if using a household vacuum machine, it requires 4 cm to deflate), and the general vacuum loading is not more than 3/4 of the bag. . So youmust choose the size according to the size of the product and your packaging machine.