Hiti 4 X 6 Ribbon & Paper Case for P51O ( TOTAL 330 prints per roll - 2 rolls/ctn) 2 roll of photo paper (330 prints per roll) 2 roll of ribbon (330 prints per roll) Maximum printing size: 6" x 4" (152 x 102 mm) Optimal Storage Environment: temperature under 75F (25C), relative humidity between 40% and 60% RH, away from sunlight and dust.