Purple Pin Whiteboard Magnets 22mm x 12mm | 12 pack collection_hide Our Ferrite Pot magnets have

Our Ferrite Pot magnets have a mild steel casing over a ferrite ring magnet with a countersunk hole for attaching to non-metallic surfaces with a screw

A  quality magnetic stud finder is a non-invasive method of identifying the plates

The chart below shows other available dimensions for this type of Holding Magnet

Astronomy and Meteorology

Purple Pin Whiteboard Magnets 22mm x 12mm | 12 pack collection_hide Our Ferrite Pot magnets haveMagnetic Product Description: Our pin magnets, also called pawn magnets due to their shape, are made with a rare earth neodymium magnet inserted into their plastic substrate. They come in a variety of colours such as yellow, green, blue, red, black and clear. They are very strong for their size and can hold approximately 10 sheets of A4 paper to a magnetic whiteboard or metallic surface. Please note: this product may not be compatible with Glass