Keep Your Windows Open but Safe: Our window security bars placed in the middle of the window allows you to keep the window open, breathe fresh air, and ensure the safety of your family. provides after-sales support services for products. Please feel free to contact us for any product quality issues. Two in one : This sliding door security bar can be easily adjusted to an ideal width of 18 to 51 inch. It can be used as both a window security rod and a sliding door security bar. Suitable for various sliding windows and doors.Reliable and Sturdy: The window anti-theft security bar adopts an alloy iron surface electrostatic coating, effectively avoiding rust. It feels smooth without burrs and is safe to use; In addition, the anti slip rubber at both ends enhances friction, making it easier to secure without damaging the window frame.alloy ironEnhance Home Security : Window security bars prevent criminals from entering through sliding glass windows or courtyard doors. Window security bars prevent intruders from entering and protect children from curiosity when opening the door or window.