Magnetic Sign Holder Changeable DIY Car Door Magnet (Retail Packaging)

Definitely a heavy weight pocket with a strong zip lock closure. The magnetic backing is the strongest of magnetic signs I've had. I think it's 45 mil. It comes in a thick cardboard sleeve that seems to keep it from curling (which might leave an edge open for getting it blown off a door). To this extent, it would definitely benefit from having curved corners so they don't get pulled up by the wind. I didn't have any problem with that. My only real complaint is that while the whole pocket is 11x17, the pocket doesn't hold an 11x17 sheet. More like 10 3/4 by 16 1/2 so you have to print your signs a but smaller and cut down the paper to make it fit. No real biggie though.

We use these as door signs on our metal exterior doors. The magnets are plenty strong enough to stay in place. However, on all 4 signs, the ziploc does not work. Since it doesn't seal, the inside get damp from humidity and causes the sign to get ruined.

apparently can't handle mild heat; shrinkage so much that zip lock won't close

Nice idea… It is starting to curl from the weather but neither sign that I bought has fallen off in the wind yet

Pretty good sign holders. Only complaint is the edges are pulled up due to the heat sealing of the pocket which might cause it to get caught by the wind and pulled off at the leading edge. Using a strip of packing tape at the leading edge seems to prevent this. Otherwise, a nice pocket to put business/performing group signs in and use for a variety of vehicles and situations.

The sign flew off the moment the truck hit 30 miles an hour. Save your money.

Idea is great. Hard to open/close the sleeve.

blew off my door and poorly made..weak magnet backing...worthless..