Open Referral NYC Flyer Sizes: 150 × 150 / 214 × 300 / 768 × 1,079 / 729 × 1,024 / 1,093 × 1,536 / 1,458 × 2,048 / 175 × 131 / 356 × 500 / 272 × 182 / 2,539 × 3,567
