... ,E,F,G.....X,Y,Z), one set of nine magnetic numbers (0,1,2,3....8,9) and +,-,x,/,= , if ... more set of twenty-six magnetic letters we can add as you required. Magnetic writing board with magnetic pen,can be written and drawn repeatly ... .A Grade magnet power which will be also clear after using for 100000 times.Magnetic ...