UNIVERSAL DESIGN WORKS IN ALL VACUUM SEALER MACHINES: Includes 3 rolls 20CM x 300CM AND 3 rolls 28cm x300cm. Including Food saver, Seal a Meal, Weston and other clamp-type suction vac heat sealer machines. Designed for maximum vacuum and tight secure seals. Our food vacuum bags are thicker than most bags sold. That means you don't have to worry about sharp objects puncturing your food sealers bags. HIGH QUALITY: Safe, Nontoxic, Good vacuum effect, High transparency, Tensile strength and durability, Easy to heat sealing, Sealing good, not easy ageing etc. SAFE, CONVENIENT, RISK FREE: B.P.A-free,Food grade safety certification approved. Can be microwaved, frozen, re-used, washed, boiled and dishwasher safe. Great for Sous Vide Cooking. WORKS IN ALL VACUUM SEALER MACHINES: Designed for use with all vacuum sealers. EASY TO CUT AND SEAL: One side recess groove design, other side glossy transparent design. 4 mil Heavy-duty bags with embossed air-removal channels for maximum freshness.Color: Manufacturer: DLOPK Model Number: F4 Part Number: BXD Size: 6 Packs 20X300cm and 28x300cmKey Features:1、Effectively remove airEmbossed back panel with diamond air channel design for maximum oxygen removal.Non-embossed front panel for optimum clarity.2、Safe and Strong4MIL thick multi-layer B.P.A-free material makes the bags safe and strong enough for freezing, microwaving, simmeringc and Sous Vide.3、Food GradeB.P.A free, Food grade safety certification Approved, L.F.G.B approved.4、Keep Food FreshUser a vacuum sealer automatically removes all the air from the bag and then uses heat to create an airtight seal, which locks out moisture and air to protect food and maintain freshness.5、Available for wet and greasy foods:The vacuum effect of wet and greasy foods as well as good at dry foods!6、Foods can stay fresh much longer:Completely isolated foods from air,vacuum degree was promoted,so it keep foods fresh up for 7 times longer!Perfect for SOUS VIDE cooking：1、Effectively Prepares FoodSous vide allows you to precisely control your cooking temperature to achieve perfect results. You can cook sous vide in DLOPK vacuum seal bags by placing them in water at any temperature.2、Keeps food SecureBy using your DLOPK vacuum sealer, water can't permeate through the bag and mess with your food3、Sous Vide CompanionDLOPK vacuum seal bags and vacuum sealers are ideal for sous vide cooking because they remove all the air around the food, effectively ensuring that the bags will float less than ordinary zipper bags.