A "small notepad" refers to a tiny book with blank pages that you can write or draw on.
Sentences with «small notepad»
When I chatted with Noah he told me that to capture inspiration he carries around a small notepad or will use a note app on his phone. (inc.com)
This includes items such as magnetic business cards, calendars, T - shirts, small notepads, pens, combs, address books, water bottles or other small items that contain your name and booth address. (bizfluent.com)
Take a small notepad with any questions you have and to write down any special instructions. (thebabycorner.com)