Fresh World Vacuum Sealer Roll 13" x 50' BPA Free. BPA free Heavy Duty Commercial Grade Textured / Embossed for best performance Cut the bags to a convenient size, no wasted material. Once the seal has been broken the bag is simmer and microwave safe - Do not, put the bag into microwave if it's still vacuumed and sealed. Specifications - Actual Dimensions - 14.0" W x 50' L 3 1/8" Dia Super thick 90um (micrometer) or 3.54 mils (thousandth of an inch). Cut to Convenient Sizes to keep the air out; freshness, flavor, and nutrition in designed to work with all Vacuum Sealers as long the size fits. Super thick 90um (micrometer) or 3.54 mils (thousandth of an inch).