Magnet Size: 1.3 inch (33 mm) diameter, 1/8 inch (3.175 mm) thickness.
Magnet Size With Polypropylene Coating: 1.38 inch (35 mm) diameter, .205 inch (5.175 mm) thickness.
Materials: Neodymium, Iron, Boron, Polypropylene, Nickel, Copper.
Strength 12 pounds, 1,366 Gauss. Pulling force is for a perfect interface with a flat steel surface. Other objects and shapes will result in a decreased pulling force. Magnets will exert a force on each other from over 2 inches away.
Magnetization: Axially magnetized, with N and S poles on flat surfaces.
Polypropylene Coating: .04 inches (1 mm).
Nickel-Copper-Nickel Coating: 15 – 30 um .
Weight: Each magnet weights 22.5 grams.