Neodymium disk magnet, Grade 35, Diameter: 0.5 inch, Thickness: 0.75 inches, Weight: 0.007 Lbs, are made from the most powerful magnetic material in the world, are composed of neodymium, iron, boron and a few transition met
Neodymium disk magnet, with 0.005in thick Film Adhesive, Diameter: 0.5 inch, Magnet side marked with S*, Magnet to Magnet Approx: 2.5 Lbs. Pul, Magnet to Steel Disc Approx: 2.2 Lbs. Pul, Application: cabinets, lockers, door
Racing Rings consists of three rods one each of copper, aluminum and PVC, Ring magnet is dropped down the PVC rod, it falls unobstructed, Two metal rods create an induced magnetic field to that adds resistance to the rings travel, metals are different, they fall at different rates