Postcard Size And Canon Watermark Reverse Sideink And Paper Are Compatible With Previous Models (selphy Cp Series Only)the Prints Are Postcard Size And Has Canon Watermark In Reverse Sideit Features Dye Sublimation Technology, It Contains Enough Ink And Paper For 108, 4x 6 Inch Prints The Ink And Paper Pack Measures 4x 6 Inch.it Contains Enough Ink And Paper For 108, 4x 6 Inch Prints.there Is Canon Watermark On Back Of Print.