Food coloring marker for safe use on bread, cake, biscuit etc.. This pen is used to write on the bread, cake, biscuits etc. Kids can write / color whatever they like in their food. We use edible ink and food grade material for plastic, ink valve, nib. The pen is assembled in a sterile workshop and we do irradiation after assembling to make sure that the pen is safe for us.All the dyes used in the ...