1/2 x 1/8 x 1/8 inch Ring

Set of 10 Magnets Size: 1/2" Outer Diameter x 1/8" Inner Diameter x 1/8" Thick Ring(12.7 mm x 3.2 mm x 3.2 mm)      Nickel (Ni) Plated (silver-like shine)Grade: N48 - Extremely powerful magnetic materialPull Force is approximately 4.59 pounds per piece NEODYMIUM MAGNETS ARE NOT SAFE FOR CHILDREN