HEAVY DUTY MATERIAL - The sliding window locks are made of aluminum alloy which is durable, study, rust-resistant and reusable, greatly withstanding pressure from heavy duty doors or windows.
FOR CHILD'S & HOME SAFETY - The security door stopper can be used to keep windows partially open or closed to improve air circulation, prevent unexpected injuries to your children or served as an added protection to your home or office in case of the break-in of burglars.
EASY TO INSTALL - No need for extra hardware tools and quick to install. Simply find a suitable place on the sliding rail, place the window safety lock and rotate the hex key to secure it.
APPLICABLE & WIDELY USED - The glass window/siding door stopper can be applied to window tracks with thickness less than 5/8 inch (16mm), perfect for horizontal or vertical sliding windows, patio doors, sliding glass doors, retractable screen doors, swimming pool cover or any windows or doors with a sliding mechanism. (Not applicable to the middle track of the window and please check your window track before purchase)
100% MONEY-BACK - If you, for whatever reasons, do not like our sliding window security locks within 30 days, please feel free to contact us and we will, within 24 hours, arrange a full refund or a replacement without any questions asked.