General description The 2 pieces of gray cast iron security locks are designed for sliding doors and windows, providing an effective anti-theft solution while ensuring child safety. These locks help keep sliding windows securely locked, preventing children from falling and deterring unauthorized access. Technical specifications Material: Iron Color: Gray Size: 2.36 x 1.38 x 0.91 inches (6 x 3.5 x 2.3 cm) Adjustable card slot distance: 0.98 inches (2.5 cm) to 1.57 inches (4 cm) Compatibility and accessories Includes 2 safety locks Usage Ideal for securing sliding windows and doors Prevents children from falling and enhances home security