Sliding window stopper: You can place the sliding window lock on the window or door bar, open and close the room as needed, nice for keeping sliding windows locked. The sliding door lock can also prevent children from falling and prevent others from invading, protecting your family and pets from accidents. Adjustable sliding window lock: The sliding window lock is equipped with a rotating key, you can easily change the card slot distance (0.2 inches to 2 inches), easy to use, suitable for most windows and doors. Quality sliding window security: Made of thickened stainless steel (121.5g), the sliding window door block is super strong and durable, can be used for a long time. Sliding window security is equipped with a rubber pad to prevent scratches and abrasion of the window, increasing the lock's adhesion and improving window security. Easy-to-use sliding window security: No punching installation, these sliding windows are easy to use. The sliding window locks have an internal hex wrench, you just need to turn the hex wrench left or right to hold the sliding window stopper in place. Widely used sliding window lock: You will receive 1*sliding door lock, 1*key. Sliding window lock can be easily applied to most environments, such as patio doors, sliding glass doors, sliding windows. Perfect for home, office, children's rooms, kindergartens, primary schools to use, providing children with a safe environment.