[High-Quality Material] Crafted from durable aluminum alloy and stainless steel, these sliding window locks offer long-lasting protection. Their robust construction ensures they withstand the test of time and varying climates. [Effortless Installation] Designed for easy setup, these locks require no additional tools or modifications. Simply add a lock to each window for key-controlled security. Installation is straightforward for adults, while effectively preventing young children from operating them. [Strong and Precise Design] With a solid aluminum alloy frame and resilient stainless steel screws, these locks provide exceptional strength and durability. They are engineered for reliable performance and can be reused multiple times without compromising safety. [Adjustable Fit] Utilize the included hex wrench to customize the fit of the stainless steel screws to match your window frame thickness. These locks are compatible with most horizontal and vertical windows, as well as sliding glass doors. [Practical Home Safety Solution] Ideal for enhancing home security, these adjustable sliding window locks effectively deter theft and prevent accidental falls. Keep your windows secured—whether open for ventilation or closed for safety—ensuring your family remains safe and comfortable. Use Scenarios: - Install on a nursery window to ensure safety while allowing fresh air circulation. - Secure sliding doors in vacation homes to protect belongings during absences. - Enhance security for ground-level windows in urban settings, minimizing break-in risks.