Product Description (Detailed) The Kornişsan Butterfly Final Stop (POM) is manufactured using high-performance POM (Polyoxymethylene) engineering plastic to provide ultimate security for your curtain tracks. The specialized "Butterfly" design allows the wings to expand and lock firmly into the rail channel once inserted, ensuring that even the heaviest draperies cannot slide out of the track due to kinetic motion. Thanks to advanced POM material technology, this end stop offers superior resistance to solar heat and chemical detergents, unlike standard plastic stoppers. It provides high flexibility and impact resistance, preventing the common issue of becoming brittle and snapping over time. Its sleek design ensures a professional and aesthetic finish at the ends of the curtain rail. Key Advantages: POM Material Strength: Engineering-grade plastic for lifelong durability and toughness. Maximum Grip: The butterfly wing structure locks into the track channel, preventing any slippage. Effortless Installation: Simple snap-in mechanism allows for installation in seconds. Heat & UV Resistance: The most reliable solution against yellowing, drying, and breakage.