5 width and 7 length, there is a concave and convex bone at the Seal of the bag, which can be sealed automatically. It will be sealed tightly after pressing it easily. It is very convenient to open and close at any time and use it repeatedly, the material is PE, tasteless, used for packaging, storing food ornament, cosmetics, frobnitz, instructions, clothes, etc. It is moisture-proof, waterproof, insect-proof, and prevents things from scattering.