The Defender composite lock is equipped with a self-adjusting cam made from high-performance marine-grade composite material. This advanced material ensures exceptional durability and resistance to harsh conditions, making the lock ideal for use in environments where strength and reliability are essential. The self-adjusting cam feature allows the lock to maintain a secure fit and optimal functionality over time, automatically adapting to any slight changes or wear in the window frame. This makes the Defender lock a highly effective and long-lasting solution for securing windows, providing both ease of use and superior performance in various conditions.