Beginning of mt was a book.
It was a mini book created by three women who were fascinated by masking tape. It was filled with fantastically designed features, clearing away our concept that masking tape is a typical product for an industrial use. We were deeply impressed by them and started development of mt to meet their request to make "masking tapes of different new colors." mt tape with twenty different colors like color pencils was completed as a result of repeated try and error.