Function: Seals the openings of various food packaging bags—such as snack bags and bulk grain bags—to prevent moisture absorption and spoilage.

Design: Features a multi‑step locking mechanism that accommodates bag openings of differing thicknesses, while the perforated holes at both ends allow for convenient hanging and storage.

Applications: Commonly used in kitchens, pantries, and other environments where food needs to be stored in a sealed, moisture‑proof manner; its 3D‑printed design also enables customization—such as adjusting dimensions or modifying the shape—to meet specific user needs.