Most listings show overall dimensions of about 7 x 7 inches and a capacity of 1 quart.
Listings describe several seal styles, typically a double-seal lock (secure double zipper), a basic seal lock, or similar zipper-style closures for added security.
They’re made of plastic—typically polyethylene—and some listings are labeled BPA-free and phthalate-free. Ingredient lists sometimes note polyethylene plus dye and ink.
Common pack counts include 19, 38, 60, and 100 bags, though available counts vary by brand and retailer.
They’re marketed for freezer and multipurpose/snack storage. Common items include sandwiches, meat, fruit, and vegetables, and listings highlight freezing, portioning, bulk buying, and repackaging.
Manufacturers describe them as reusable after hand-washing and drying, but advise against reusing bags that held raw meat, fish, eggs, or foods that could trigger allergies.
Common features are a stand-up bottom, a stay-open design or fold line to keep the bag open for filling, and some variants add non-slip texture or easy-open tabs.