All of Daisy Hill’s prints are printed on Canson ProCanvas Matte Poly-Cotton 395gsm – a top grade professional canvas and is OBA Free (No Optical Brightening Agents). Acid free & certified to avoid paper degradation. Designed to meet Galleries and Museums longevity requirements. Genuine Epson UltraChrome Pro inks are used by the Epson P20070 printer. Guaranteed to last over 80 years, depending on where it hangs, over 100 years. Each print comes with a Certificate of Authenticity signed by Daisy Hill.