... -gloss, satin waterproof RC photo paper (microporous), from 180gsm to 260gsm; a unique coating delivers instant drying, superior water resistance and ... Contrast ·All Desktop and Large Format Inkjet Printers Compatible2. Weight : 260gsm, 220gsm, 180gsm 3. Size: Sheet----3.5"X5", 4"X6 ... .124m,1.534m X 2,200m premium photo paper ( 180gsm---260gsm )