Large print is a grid size, not a marketing line
A 20×20 grid on letter paper is 8 mm letters if you are lucky. A 10×10 on the same sheet is closer to 15 mm. That is the whole trick. We do not sell a premium large-print file.
Use short words. An 11-letter dinosaur name on a 10×10 grid either will not fit or will eat the page. Colors, fruits, and family lists are the right length.
Activity directors: the seniors page has more on cognitive exercise and session length. Teachers of beginning readers should stay on easy word search.