Media Summary: Step by step instructions on how to install the Classroom Door Barricade Device TESTED by School Resource Officer. The Learn how simple it is to engage and disengage the
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Step by step instructions on how to install the Classroom Door Barricade Device TESTED by School Resource Officer. The Learn how simple it is to engage and disengage the This was a customer in Texas who shared his surveillance video with us. The TUN DO student, Eric Chai, demonstrates how to use a Henry Reyna of Secure Solution, LLC. help test the
