The PE natural bottle cap for 250–500 ml bottles is a reliable and practical closure for plastic bottles with capacities between 250 and 500 ml. Made from high-quality polyethylene (PE), this cap provides a sturdy, leak-proof seal that protects contents from spills, contamination, and moisture. Its neutral, natural finish makes it versatile for various applications, including pharmaceutical preparations, laboratories, and healthcare settings. The durable material ensures resistance to frequent use and chemical exposure, while the screw closure guarantees easy and secure opening and closing. Supplied in a pack of 20 pieces, the PE natural bottle cap 250–500 ml supports an efficient, hygienic, and professional workflow.