Description: 【Feature】: Our window security lock can control the partial opening or closing of window, effectively reducing the risk of children and pets falling from high window 【Adjustable Design】: Our sliding door security bar can be adjustment, catering to diverse needs 【Easy to Use】: You just need to place it directly on the window or door track for secure fixation without any tools required for installation or removal. For vertical window, you will need to prepare sticker or screws yourself in order to fix the window security lock onto the frame 【Material】: Made with quality metal material that is sturdy, can withstand impacts, and is thicker without deformation 【Wide Use】: These window security bar can also be used for wardrobe, small window, or partition curtain Specification: Material: Metal Size Chart:Length 9.84inch-16.7inch, with 9 holes Package Includes: 1 Sliding Door Security Bar Note: Please allow slightly errors due to manual measurement and different monitors.