THIS IS FORA PACK OF 10 MATS without backing and bags , Featuring a picture opening for a 5.5x8.5 inch photo, to fit in a 8.5x11 inch picture frame. Photo openings are beveled cut 0.5" smaller than the art size advertised to overlap the photo and help keep it securely in the frame. MADE TO DISPLAY a 5.5x8.5 Photo and fit in a standard 8.5 x 11 Picture Frame. Vibrant Textured White color Acid Free Picture Matting. Great replacement for damaged, dirty, or faded matting in your old frames. PREMIUM QUALITY: Our precut photo matboards are acid free & precision cut with a 45 degree bevel by machine for perfect corners and NO over-cuts every single time! PRECUT ACID-FREE, PROFESSIONALLY BEVEL CUT Matte Board. Custom Frame Shop and Archival Quality. All of our Precut Matboards are proudly MANUFACTURED IN THE USA.