This has a Fiber Photo Paper Base of 300 gsm, a 13 millimetre thickness, Acid & Lignin Free, Micro Porous Smooth Gloss Surface (F-Type) with minimum gloss differential. It has an extremely high D-Max, wide colour gamut & instant drying time. Epson Traditional Photo Paper is a breakthrough paper, designed exclusively for use with Epson's Ultra Chrome K3 ink, developed in collaboration with many of the industry's leading professional photographers to ensure it meets their most discerning requirements. Many who have contributed to the development of Traditional Photo Paper have commented that it reminds them of revered silver halide papers as well as providing greater creative control due to extraordinary D-Max & tonal transition in black & white. You can also print extraordinary colour with the same paper - something that was not possible with traditional fibre based papers. Combining the artistry of traditional photography with the ease & control of digital output, this unique media offers the same deep blacks, subtle tonal gradations & long-lasting results as the darkroom papers from previous generations. Its fibre base has a rich surface, a continuous tone & soft gloss that are ideal for creating stunning colour or neutral black & white prints that retain the look & feel of traditional fiber paper. Like all Epson innovative media, this paper is engineered to give you the highest resolution & colour saturation possible. As always, Epson supplies guarantees Epson quality.