YOU SAID:
I have a massive 12-incher
INTO JAPANESE
私は大規模な12インチャーを持っています
BACK INTO ENGLISH
I have a large 12 incha
INTO JAPANESE
私は大きな12インチャを持っています
BACK INTO ENGLISH
I have a big 12 incha
INTO JAPANESE
私は大きな12インチャを持っています
BACK INTO ENGLISH
I have a big 12 incha
That didn't even make that much sense in English.