Heavy Duty & Leal-Proof: 3.5 mil smooth side for clear visibility and 4 mil embossed side with dot air channels for maximum oxygen extraction; puncture-resistant design prevents tears from sharp foods like bones or edges, ensuring reliable vacuum sealing without leaks Food Grage & BPA Free Safety: Made from high-density nylon PE material, non-toxic and odor-free; withstands -40°F to 230°F for boiling, freezing, microwaving, and sous vide cooking – perfect for meal prepping, marinating, or long-term kitchen storage without health risks Extends Food Freshness 3-6X Longer: Superior airtight seal locks in moisture and flavor while blocking oxygen to prevent freezer burn, dehydration, and spoilage; ideal for preserving meats, veggies, or leftovers, helping you save money and reduce food waste in busy households Universal Design: Compatible with All 'Clamp Style' Vacuum Sealers with vacuum grooves, such as FoodSaver, Weston, Nesco etc. Note: Will NOT work with nozzle-type sealers like our MAGIC SEAL MS175 or MS180 models Economic & Convenient: Packed in rolls, easily creating your own length of bags to vacuum and seal any food, reduce waste and save money Enhance your food storage with these high-quality vacuum sealer bags featuring a robust 3.5 mil smooth side and 4 mil embossed side with dot air channel design. The bags measure 11 inches by 16.4 feet and are engineered with puncture prevention technology to protect your food. Constructed from food-grade high-density nylon PE material, these BPA-free bags are safe for temperatures ranging from -40 to 230, making them suitable for boiling, freezing, and microwave use. The bags are designed to work with all clamp-style vacuum sealers equipped with vacuum grooves, effectively preserving food's moisture and flavor while extending shelf life 3-5 times longer. The roll format allows you to customize bag lengths according to your needs, minimizing waste and maximizing efficiency. Note that these bags are not compatible with nozzle-type vacuum sealers like MAGIC SEAL MS175/MS180.