MIKEDE Strong Neodymium Bar Magnets with Double-Sided Adhesive, Rare-Earth Metal Neodymium Magnet - 60 x 10 x 3 mm,12 Pack

My expectations may have been higher but these don’t seem to be as strong as I wished for. Might be to do with the thickness. I’m not a magnet expert.

These are perfect size and strength, if you drive in a parade and need to place a poster on the door.

Over the years I have used many, many neodymium magnets for various applications and these are without a doubt the weakest magnetically I have ever purchased.

I bought these bar magnets to keep my ac return air grill closed after the latches broke. The magnets are packaged well with spacers between the magnets. I didn't use the adhesive because the magnets were fixed metal to metal. I used two of the magnets and they held the door firmly. If it's an overhead drop down door then you might want to use three. The only issue (small one) was the magnet durability. I dropped a magnet from less than 8" high and it broke in half. Fortunately, the package comes with enough magnets. I recommend them.

Holds 18lb (8kg in real weight) not!! Won’t even hold up a pair of craft scissors :-(