Jun-26-14
Developed by a group of teachers, the Sleeve makes it easy to quickly lock a classroom door from the inside.
Created by teacher Daniel Nietzel along with a group of colleagues, the Sleeve is a response to the disturbing rise in school shootings and a potential solution to the lack of a way to lock a classroom door from the inside. The simple device consists of a steel piece that attaches to the top hinge of the door from the inside to prevent the door from being opened.
The Sleeve is being marketed directly to teachers, whom Neitzel envisions carrying it a purse or storing it in a drawer for quick use while still keeping it out of sight of the class.
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