The mats have 1/8 and1/16 scales along the boarders,and are imprinted 1"*1" grid lines.each 1'grid is dotted in 1/16.
When not in use for cutting,the mat's resilient surface is especially suitable for writing with a ball point pen or other instrument that requires positive contact to paper,etc,even the writing action of fine point pens is not influenced by previous cutting lines.
