1. [Ensure the safety of children or pets] The window limit lock is designed to restrict the window opening amplitude to within 100 millimeters, helping to prevent children or pets from falling or running out and ensuring their safety. 2. [Easy to install] Simply use a screwdriver to fix the limit lock on the window to finish the installation (screws and an operation manual are provided). 3. [Made of durable 304 stainless steel] These window limit locks have good corrosion resistance, high toughness, and anti - rust performance, which can help extend their service life. 4. [Reasonable design] It can be unlocked to fully open the window. When closing the window, it will automatically return to the limit position, which is quite convenient to use. 5. [4 right - hand models + 4 left - hand models] The set includes 4 right - hand models and 4 left - hand models, making it more convenient to use. It is suitable for safety protection in places such as families, kindergartens, and schools. 6. Product name: Window limit lock 7. Quantity: 8 - piece set 8. Color: Silver 9. Material: Stainless steel 10. Packaging contents: - 4 right - hand window limit locks - 4 left - hand window limit locks - 32 screws - 8 safety fixing pins - Only the above packaging contents are included, and no other products are included. 11. Note: Light irradiation and different displays may cause slight differences between the color of the items in the picture and the actual product. The allowable measurement error is ±1 - 3 cm.