Designed to seamlessly fit over window surrounded by brick, wood, or stucco that project outwards at 90 degree angles, adjacent to recessed window Features a secure wedges grip that prevents slipping or falling off during setup The clips firmly grip the plywood like a box spring clip, ensuring a stable and secure hold throughout the installation process, which can be easily managed by a person These board up clips a straightforward, quick, and cost-effective solution for protecting window during severe conditions and Remove: Simply slide the clips onto the plywood and press down on window frame; when you want to remove it, slightly bend the serrated section, Manufacturer: JunsenF