Non-metallic fasteners for packaging containers, namely, plastic lids and caps, sealing caps, and closures; closures for packaging containers, not of metal; plastic lids for packaging containers; plastic caps; sealing caps, not of metal; plugs, not of metal in the nature of non-metallic closures for containers; non-metallic sealing caps; plastics closures for packaging containers; closures for packaging containers, non-metallic; plastics components for packaging containers, namely, container ...