Review on MIKEDE Strong Neodymium Disc Magnets, 16 Pack Powerful Permanent Rare Earth Magnets With Double-Sided Adhesive, Fridge, DIY, Building, Scientific, Craft, And Office Magnets, 1.26 Inch D X 1/8 Inch H by Omar Card

The magnets are really strong. However, you have to be Superman to get them apart to use them. It literally took me 30 min to get one off of the stack and my hand whipped back and hit me in the face. Then I set them down too close together and they locked themselves back together again! The adhesion sticker was not strong at all. (Outside, dry surface but damp conditions) It would stick by itself with one magnet but once you stuck the second magnet it fell right off of the ceiling. Then everything fell and once again hit me in the face. Then they dropped on the porch and broke. (I was trying to drape lights that weighed about a pound over my front door.) In the end I had to enlist help and we put the magnet on the ceiling, duct tape holding over the top, the lights and the second magnet. Looks ugly in the daylight but did the job!