Fine print American British noun phrase
The detailed rules or terms of an agreement, contract, or other documents, which are frequently printed in tiny font and therefore easily overlooked
Whenever users install an application, they frequently ignore the fine print.
Henry was in charge of reading the fine print and decided whether renewed the contract or not.
If you don't read the fine print of the loan contract, you might end yourself in a lot of trouble.
If you write your own ticket, you are empowered control the terms and conditions for something according to your wishes or needs.