CAL Cobra Double Security Bolts for Doors & Windows

CAL Cobra Double Security Bolts for Doors & Windows - Works even when the door or window is half-open - Easy to install - Easy to use - Original design - Attack Resistant - Long-lasting and weather-resistant Comes complete with 2-position nightvent keep, flat keep, 5x packers (1, 2, 4, 8, 9mm) and screws. Can be installed on all sides of the door or window and multiple devices can be installed. Overall height: 112mm Body Width: 60mm Nightvent Keep Width: 17mm