Review on 50Pcs Neodymium Magnets With Countersunk Hole And Stainless Screws - Strong Rare Earth Magnets Disc For Locker, Tool Storage, Crafts By MIKEDE by James Cross

One of these magnets provides a stronger grip than a stack of 4+ of the conventional coin or button size neodymium magnets, with a larger surface area to boot. Grip stays strong even under a layer of cloth, tape, or plastidip if you're using them in an application where you'd want to protect paint. Strong enough for an outdoor application or situation where something would see a love of movement. Four of these secured a full-sized cloth flag to the hood of a vehicle for a two-day offroad event without budging.The large size also means that even if several get stuck directly together you can still get enough of a grip to pry them apart, though they are strong enough that they'll snap back through just about anything you put in their way.