Light Impressions Westminster Archival 20" x 24" 4-Ply Rag Mounting Board, Bright White 25 Sheets.

Don't have the time (or desire) to cut single sheets of mat board? Enjoy the same exceptional, museum-quality board in convenient, expertly-cut standard sizes. 100% cotton fiber, buffered with calcium carbonate with a pH of 8.0 +/- .38