Introducing the ZC035-upgraded 3 Section Door Jammer with Alarm, Sliding Window and Door Security Bar! As a factory, we pride ourselves on delivering top-quality security solutions. This multifunctional product boasts a sturdy construction that effectively reinforces doors and windows, providing an impenetrable barrier against intruders. Equipped with a built-in alarm, it alerts you to potential break-ins, ensuring your peace of mind. With its adjustable design and easy installation, this door jammer and security bar is suitable for various door and window sizes. Trust in our expertise, and safeguard your home or office with the ZC035-upgraded 3 Section Door Jammer with Alarm, Sliding Window and Door Security Bar!