Whiteboard magnets usually mean the assemblages of ferrite magnets and flat plastic cup. It is mainly used on the notice board, that's why they are called as noticeboard magnets or message board magnets.The strength of ferrite whiteboard magnets is weaker than neodymium noticeboard magnets. But it is much cheaper. The advantage of lower cost let ferrite whiteboard magnets used much more than neodymium magnetic push pins. Most of ferrite noticeboard magnets round and flat. Meank magnetics is professional noticeboard magnets supplier(whiteboard magnets factory). We have a wide size range and different shapes and colors for choosing. Welcome your inquiry about any whiteboard magnets.