Nielsen Bainbridge GB10P Artcare by White with Black Bevel 16x20 Pre-Cut Museum Quality Archival Picture Mat for 8x10 Photo, Portrait Opening Archival pre-cut mount board 100Percent Archival rag Double thick White Archival mat with contrasting black core Anti aging Liner with microchamber & Archival matting Museum Quality mat with the extra protection of the Artcare technology