6 Pack Magnetic Lockdown Strips for Iron Door Frames High-Density Magnet Security Devices for School and Office Effective and Easy Solution for Emergency Lockdowns (Yellow)

I’m in a new building and didn’t want anything that would ruin the door jam or need to be installed - this fit the bill! It’s perfect! I did have to use two for the door to have enough stick to stay shut but I think it’s because right outside my classroom in the hallway is an air vent so the extra air pulls the door open. Another classroom down the hall only uses one and it works exactly as intended! I will continue to purchase for my classrooms and colleagues too

I bought these for my classroom. They are perfect. Now I can keep my door locked at all times.

I bought some and gave them to my teammates as well. We all use it and really like the ability to keep our doors locked and the ease of the magnet. Great idea.

Great to help quickly lock your classroom door in an emergency

works well , easy to use

It does the job. Holds door locks open.

Perfect for what they are meant to be used as!

Good size, but Just not strong enough to stay on the door. I have to tape it in order to stay, and even then it hair say least once a day