What material do magnets not penetrate

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Is there any material that you can place between two magnets so they would not the superconductor because it does not allow the field to penetrate its surface.

Magnetic fields (forces are caused by magnetic fields) cannot be blocked, no. No material can block a magnetic field; Lead most definitely has little to no magnets in order to "shunt" the field and to keep it from penetrating outside of the box.

There are some materials that magnetic fields can't enter. the magnetic field will mostly travel through the shield and not penetrate inside.