The 2 Pc Sliding Window Locks by First Watch are a set of white aluminum locks designed for sliding windows. The package includes two locks, model number 1411. These locks are suitable for securing sliding windows and are made of durable aluminum material. The product does not come with any specific installation instructions, but they are easy to install using the included thumbscrews. It is important to note that this product may contain chemicals known to the state of California to cause cancer, birth defects, and other reproductive harm.