Let me start by saying that I have purchased dozens of this type of magnets over the years and am fully aware of their limitations. These are the first that I have purchased that have cracked so easily. I lightly tightened the mounting screws and two or three of them developed cracks. Hopefully they are glued to the cup and the pieces won't fall out. They are fairly strong but I highly doubt that they have 100 lbs of pulling force that they claim.
Pack Of 12 MIKEDE Neodymium Bar Magnets - Strong Rare Earth Metal Magnets With Double-Sided Adhesive - 60 X 10 X 3 Mm Size
41 Отзыв
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
40 Отзывов
50Pcs Strong Neodymium Magnets With Hole & Mounting Screws - Heavy Duty Rare Earth Disc Countersunk For Locker, Tool Storage & Crafts
31 Отзыв
50Pcs Neodymium Magnets With Countersunk Hole And Stainless Screws - Strong Rare Earth Magnets Disc For Locker, Tool Storage, Crafts By MIKEDE
42 Отзыва