【Food Grade Materials】Our fresh-keeping bags are made of high-quality food grade PEVA material, which is environmentally friendly, non-toxic, odorless, thick, durable, reusable, and suitable for household use. 【Double Zipper Sealing Design】Our fresh-keeping bags adopt an improved double zipper design, which enhances the sealing performance and provides better leak proof, spill proof, and moisture resistant effects, thus better preserving food. 【Heat and cold resistant】Our fresh-keeping bags are resistant to both low and high temperatures, and can be stored in ice and a 120 degree dishwasher for easy preservation and cleaning. They are also reusable. 【Large Capacity】You will receive 8 plastic bags, each with a size of 28x28cm. Its storage function exceeds your imagination, and it can store food for picnics, prepare meals for families, carry lunch boxes for work, and more. 【Widely Application】Our fresh-keeping bags are perfect for storing various types of food, such as sandwiches, fresh fruits, vegetables, snacks, cookies, potato chips, grains, meat, meals, and frozen foods.