Hi-Touch Photo Paper Pack for 6X Models 50 Sheets (57.P0103.034) Maximum printing size - 4 x 6 inches Paper size - 4 x 7 inches with perforated edges Compatible with HiTi Photo Printer 630PL/PS, 631PL/PS, 640PS, 640GALA, Photoshuttle and Transphotable NOTE - For optimal storage, keep away from sunlight and dust, at a temperature under 75?F (25?C), with relative humidity between 40% and 60% RH