"WardsSci000480"

The acrylic-housed, red ceramic magnet has a built-in handle with south and north poles clearly marked.

These ceramic ring magnets have an inside diameter of 35 mm and an outside diameter of 45 mm.

Floating Magnets Seem to Defy Gravity

Ceramic Ring Magnets have a high resistance to demagnetization and don't need a keeper.

Simple magnets for physics labs,

For demonstrations, plotting magnetic fields.