2-piece set with key. Aluminum alloy door frame security lock, adjustable sliding double window lock. Steel security locks. Child safety limiter.

Widely Used: Sliding window locks can be easily applied to most environments, such as patio doors, glass sliding doors, and sliding windows in hotels, residences, hospitals, schools, and offices, providing a safe environment for children.

Durable Material: Made of stainless steel, the main material is strong and durable. The material is thick, and the screws are also thick. Equipped with soft plastic rubber pads, it is scratch-resistant, wear-resistant, and easy to open. These sliding door and window locks are durable.

【Security Performance】Place it on the window or door bar. Open and close from the desired part of the window. This prevents thieves and children from climbing through the window, limits interior ventilation, improves air circulation, and protects the safety and security of the family and children.

【Easy Installation】No installation required. Drilling, card installation, no drilling required, easy replacement, no other installation tools needed. Each window lock has an internal hexagon with a key and can be tightened by turning the hex key clockwise. Precise design: scratch-resistant, friction-resistant, and age-resistant silicone rubber pad; high-temperature window protection. Suitable for most aluminum alloy and plastic windows, vertical or horizontal sliding doors and windows.