Pack Sliding Door Lock Window Limiter Sliding Door Security Lock with Key White <p>【High Quality Material】: The sliding patio locks are made of strong and sturdy zinc alloy, which is strong, wear-resistant and durable. High strength that provides a long service life.</p> <p>【Comes with Keys】: Each sliding door lock is equipped with 2 universal opening keys, which means you need one key to open the window or patio door. This is the best way to prevent sliding windows or patio doors from being opened outside by unwanted visitors or prevent your children from opening the windows to the outside. These security locking bolts come with all mounting accessories. Easy to install.</p> <p>【2 Installation Ways】: Patio door locks with 2 metal plugs and 2 metal mounting plates without punching, one is punched installation (hole plugs are provided) and the other is non-punching installation (fixed plates are also provided). You can choose the appropriate method to install this lock.</p> <p>【Increased Security】: The sliding patio locks are designed for doors or windows and increase the security of your home or office. Note: Please install the sliding lock at the top and bottom of your door or window for maximum security.</p> <p>【2-Piece Sliding Patio Locks】: These universal locks are designed to fit most hinged or sliding doors and windows and are used to lock the window or limit the window.</p>