Muscatine, Iowa -
(KWQC) It's a simple metal piece that can save lives during an active shooter setting. All you do is slip it on the door closer and it can resist up to 550 pounds of force.
Daniel Nietzel is a teacher in Muscatine and President of Fighting Chance Solutions. He says this is safety in schools is personal.
"I tried to put my son in that classroom, what would I want on that door?" he says.
Nietzel wanted to take it into his own hands and came up with "The Sleeve". He and four other educators started the company, Fighting Chance Solutions.
Right now, most classroom doors only lock from the outside. During the Sandy Hook Shooting, a teacher was shot when she stepped into the hallway to lock the door.
This new invention works to prevent that. It quickly slips on to keep the shooter out, and comes off in one second for evacuation.
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