Vac-Fresh Roll 15" x 50' Vacuum Seal Bags 3.5mil VF1550 for Vacuum Sealers, 1 Roll 15"x50' Vac-Fresh Roll Universal Vacuum Bags can be used in most leading brand vacuum sealers 3.5mil heavy-duty vacuum bags with cross venting channels on one side of the vacuum seal bag for maximum air extraction Protect food against freezer burn, spoilage, & odor or prevent silver & jewelry from tarnishing with vacuum sealing Vacuum seal bags are safe for food packaging applications; dishwasher, microave, boiling, & frozen *Food can be boiled or microwaved right in the bag Meet FDA and USDA specifications for food contact