Come and see our amazing products. Universal design: Compatible with all "clamp-type" vacuum seals, with embossed channels to increase vacuum suction and firm sealing Bisphenol a-free: safe and perfect for food storage, frozen dried meat, bread, meals, nuts, grains, marine foods, cakes, documents, precious jewelry and electronics Long-term preservation: extend the shelf life of food 3-6 times, keep the food fresh, nutritious and taste.Eliminate freezer bank burns and dehydration, air waterproof material prevents leakage Heavy puncture proofing: Food grade pa pe material, 3.5 ear front panel and 8 dense texture or relief back design for maximum freshness with bone protection against perforation Pls confirm further with us if any query about packing info, inventory status and time schedule.