A plug, or conical block of wood, with longitudital grooves on its surface area, through which the strands with the rope slide in the entire process of twisting Multilayer program: the addition of a plastic film was the first step to help make brick containers impermeable to liquids and heat-sealable. https://waterincarton.sport.blog/2025/05/03/a-smarter-sip-sustainable-and-premium-hydration-with-kevala-niru/