Yes, the magnet of our containers could cause some problems to mobile phones and credit cards, if placed in direct contact with them.
With the items listed below, however, this problem does not arise. Unlike the others, these containers have a movable fixing system, thanks to which the magnet never touches the internal part of the container, and the magnetic force is directed only towards the chalkboard:
Magnetic Boule Ø10 cm
Magnetic Boule Ø15 cm
Magnetic Bowl 22 cm
Transparent Magnetic Boule Ø10 cm with lid