Pro MAG® Button Magnets, .5

These disc magnets are 0.625 inch (15.9mm) diameter and 0.125 inch (3.2mm) thick. They are magnetized through the thickness.

Magcraft Nsn0674 - Rare Earth Disc Magnets, 0.625 in. Diameter x 0.125 in. Thick, 8-Count

O-Mag Magnetic Phone Holder (MagFit) - Official Site – Spigen Inc

Pro MAG® Button Magnets, .5

Magnets Michaels

Pro Mag Neodymium Magnets, .5 in Black | 1/2 | Michaels

ProMag Flexible Round Magnets, 0.5-Inch, 50-Pack, 457450 : Office Products

Magnum Magnetics-Corporation ProMag Flexible Round Magnets-.5 12/Pkg : Home & Kitchen

ProMag Flexible Round Magnets, 0.5-Inch, 50-Pack, 457450 : Office Products

Promag