Printed flat flyers in different sizes by KEOPSY

Flyer Sizes Guide: 4x6 vs 5x7 vs 8.5x11 (Which ...

Not sure which flyer size to order? Compare 4x6, 5x7, 5.5x8.5, 8.5x11 and 11x17 by use, content space and USPS mailing rules, plus a pre-order checklist.