【Package Includes】4 security locks in the package Window lock, equipped with fixing screws and protective cover, ideal solution for home security. 【High Quality Materials】The window lock is made of aluminum alloy, with great durability and quality. Frame locks hard to rust and has a white paint finish, solid nails, thick lock body, sturdy for long time use. 【Easy to Use】Easy to install and provides excellent security additional.Simply turn one jammer arm to lock and release the frame. 【Preferred Security】Prevent children from opening doors alone. Sash window restrictor locks can give your home an extra layer of protection and are an ideal solution for home security. 【Perfect Match】The jammer arm can be rotated 90° left and right, which is easy to use.White powder coated finish, a good match with your windows and doors. 【Widely Used】The T-type sliding door lock is suitable for opening doors and windows both inside and outside doors and windows. You can lock or unlock the sliding window