SIZE DETAILS: Medium size:7.9*7 inch, 25 packsMATERIALS:storage bags are made from FOOD-GRADE and thick plastic, NON-TOXIC and BPA free. Storage bags are reusable, simply by washing after use. Contribute to environmental protection.STRUCTURE:freezer bags have dual-track zip, easy to seal and open. The zip lock works well and seals the bags securely. Excellent structure is at bottom which has a gusset for expand, they can store a good amount of food or liquid, plus the wide bottom means you can stand the bag up on the counter to fill it up.DESIGN:ziplock bags are mainly transparent so is obvious what is in the bags. There is a white recon the bags, you can note down the contents with a marker. This is a resealable bags.MULTIPURPOSE & SERVICE: Sealed bags are ideal for fresh fruits, meat, vegetable, sandwich bags, fish, dinner leftovers, snacks, and various nuts, and can store the small items when we traveling. If you are not 100% satisfied with our products, please feel free to contact our service.