Master Magnetics Magnetic Sign Holder Pack - Magnetic Sign Holders for Door Frames, Metal Shelves, Whiteboards - Powerful Magnet - Retail EZ Grip Holder - 3" L x 1" W x 1.13" H - 25-Pack

I used these to hold 24"x32" display boards on top of metal gondolas inside a retail store for an event and they worked amazingly! It held the signage firmly in place and remained in place until removal.

Great magnet, very sturdy

I used two of these to hang a small 8 x10 tin sign. The sign clipped into the holders well and the magnet stuck to the steel columns. After less than 24 hours the adhesive between the clippers and the magnet gave up and all of the signs fell.

The product magnet sticks very well. However, after detaching the magnet off a surface a few times, the plastic attached to the magnet comes apart. The adhesive between the magnet and the plastic is not that durable.

Will not hold one laminated sheet of paper, 5 mil. I have other brands that will. Sometimes cheaper isn't always better.

The gap between the plastic is too much that it doesn't hold the sign strong.

The plastic brakes easily and is attached to the magnet with double-sided foam tape, so it lasts in place very little. They are poorly mounted, so from each box only few can be used, but again they stay in place very short time.