The fact that something like this is needed is saddening. But it needs to be made.

WTVR.com

[ndn id = 26247709]

MUSCATINE, Ill. – It’s the last thing a teacher wants to have to think about: what to do in case a shooter is in the building.

School shootings have led a few Muscatine middle school teachers to take action, and invent a device that will protect their classrooms.

“The Sleeve” is a 12-gauge carbon steel case that fits around the door’s closer arm, securing the door from the inside. The Sleeve can withstand more than 550 foot-pounds of pressure, making it nearly impossible to open from the outside.

Daniel Nitzel, a teacher at West Middle School in Muscatine, got the idea from the school’s active shooter training.

“We were instructed to tie a belt or a cord around the closer arm. It seemed like a logical way to secure a door without having to go into the hallway, [but] it took us a long time to get a…

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