***Memo Squares are conveniently-sized to keep you organized.***. . Our Aviator Memo Square - White REFILL offers top and bottom lines of text, printed in your choice of 10 lettering styles and 16 matte ink colors. Produced on our high-quality white paper text sheets.. . Order your Personalized Memo Square today.. - Loose REFILL Sheets Only (Holder not included). - Personalization: Top and/or Bottom Line. - 10 lettering style & font choices. - 16 matte ink color choices