These small cylinders are often used as triggering devices for Hall Effect sensors. They are also useful for small arts & crafts applications and tiny fridge magnets.
This size is also available in grade N52 as part number D11-N52
and in High Temp grade N42 as part number D11SH
These magnets are sold in packs of 10. Order a quantity of 1 and get 10 magnets. Order a quantity of 2 and get 20 magnets. Order a quantity of 3 and get 30...