Non-metal devices for closing, resealing, or securing previously opened bags; namely, manually operated bag-sealing devices, including tubular, rod-shaped, channel-shaped, U-shaped, or other non-metal bag-sealing devices in multiple sizes, made of plastic, silicone, rubber, or composite non-metal materials, and including versions incorporating internal rods, sliding inserts, compression or tension mechanisms, collapsible or foldable structures, versions with metal components, child-resistant or safety-lock features, or integrated cutting blades, powered sealing elements, or other utility features; and non-metal holders, racks, stands, storage trays, organizers, containers, dispensers, brackets, hooks, clips, fasteners, magnetized mounts, replacement parts, or kits comprised primarily of the foregoing goods, all specially adapted for bag-sealing devices, and bags or containers sold empty or filled as a unit with the foregoing goods, all for bag-closing, securing, and storage purposes.