The warm waves, the shining sun! Use the Baja Beach Flip Flops Double-Sided Calling Cards to put some summer into the hands of your friends, colleagues, clients, and more! Personalize to your specifications for the perfect item. Business cards measure approximately 3½" x 2". Customize up to 7 lines; 24 characters and spaces maximum for line one (front of card) and 30 characters maximum per line (lines 2-7).