Review on 💪 MUTUACTOR Neodymium Threaded Vertical Pull Force: Unleashing Maximum Magnetic Power! by Jonathan Clark

These magnets were purchased to attach a 1/4" GoPro base to the shoulder straps of backpacks by placing steel washers underneath. When they arrived, I put them in place. Magnets on my fridge and the connection was very strong. I was confident it would protect my gear. However, when I tried using pucks much later, there was no attraction at all. That got me so surprised my first thought was that the washers weren't steel but the other magnets on my fridge worked fine, as the rubber on the sides of the magnet shifted I could feel/see how thin the rubber on the bottom and I noticed that there were 6 small indentations in the rubber arranged in a circle so I used the edge of the washer and noticed that only the centers of these small circles had a magnetic attraction. Between each circle, in the center of the platform, towards its edge, and across, there was no magnetic attraction that I could physically detect. I'm pretty sure this magnet isn't actually a magnet. Instead I'm guessing it's a 2mm thick non-magnetic material with six 10mm x 1mm magnets attached, encased in 3mm thick rubber, with the thicker rubber on the non-magnetic side/ top of the base. The small 10mm magnets aren't even strong enough to puncture the non-magnetic material they're attached to. On the underside, the shims I used fit perfectly in the dead zone. Even when I tried larger washers, the balance of magnetic force along the weaker edges of the small magnets resulted in a weak attraction. As an off-center washer, it makes full contact with two of those magnets at best, and feels much less than 1 pound of magnetic force. They are therefore completely unsuitable for my application. Unfortunately, when I first thought the magnet was reliable, I destroyed/threw away the shipping packaging, making it a relatively expensive learning experience. Whatever the case, I can see that a lot of thought and thought went into the design. The non-magnetic material on one side with thicker rubber, I believe, is intended to protect objects mounted on it from shock and magnetic interference. The thinner rubber on the bottom protects the surface the magnet sits on with minimal tear/gap. Using smaller magnets has effectively minimized magnetic interference (because the magnetic field of small magnets is relatively short/small) while maximizing pull (because they work together). So if you're using them on a large surface, they're probably perfect. However, if you're going to use them on a small area like me, you'd be better off using a real neodymium magnet (1.26" diameter) with plastic-coated countersunk holes and non-magnetic screws.