Beautiful vacuum bags with excellent transparency and gloss, flexible enough to not crush the contents. We have prepared a standard bag for food packaging that is easy to use for everyone. Double-layer nylon for strong tenacity - From freezing 40 degrees to 100 degrees for 30 minutes of voile with this single piece. Please use a chamber type and nozzle type machine to use. Cannot be used with vacuum machines that use special bags. Please use a chamber type and nozzle type machine to use. Note: Please note that food sealer, bonabona, vacuum seal, sealed packer, gourmet saver, etc. cannot be used.