Very strong. I use one to keep a 12 foot farm gate closed. How powerful? A 4 year old could open the gate but not a toddler. The hole in the magnet made me think I could use a screw to attach it with a screw. nope The magnet split in half with very little effort. Its tensile strength is probably about the same as Life Saver lozenges.
16-Pack Powerful Neodymium Bar Magnets | MIKEDE Rare Earth 𧲠Metal Magnets with Double-Sided Adhesive | 60 x 10 x 3 mm
35 Review
Powerful Neodymium Bar Magnets With Double-Sided Adhesive - Ideal For Home, Office & Scientific Uses - Pack Of 16 Magnets
40 Review
Pack Of 12 MIKEDE Neodymium Bar Magnets - Strong Rare Earth Metal Magnets With Double-Sided Adhesive - 60 X 10 X 3 Mm Size
41 Review
50Pcs Neodymium Magnets With Countersunk Hole And Stainless Screws - Strong Rare Earth Magnets Disc For Locker, Tool Storage, Crafts By MIKEDE
42 Review