Keep Fresh Vacuum seal bags are constructed of foodgrade 7layer durable pliable material that forms a tight barrier around the food preventing air moisture freezer burn frozen and dehydration Heavy Duty and Puncture Prevention AENTGIU sous vide bags are designed with 4 mil front panel and embossed back panel for maximum protection and freshness locking in nutritional extending storage time 46 times Apply to the temperature of 4230 Compatible with All Vacuum Sealers Seal a Meal Bags work great with all major brand suction vac heat vacuum sealers Compatible with Food saver Cabelas Ziploc Seal a meal Weston Nesco etc We have done professional testing safe and excellent to use Economical Vaccum Seal Bags with Maximum Convenience These precut food seal bags are designed with an easytear mouth effortless to tear without the trouble of finding scissors or food spills saving your time The chef recommended Multipurpose Record Easily portion out meals throughout the week and save extra food for later use Extra waterproof and oilproof freezer labels make it easy to record your storage time and contents removable