11x14" Picture Mats with core bevel cut for 8x10" Pictures<br> White Frame mats size 11x14 inch with opening size 7.8x10 inches for 8x10 inches Pictures<br> The mats are beveled cut with white core and 4-ply thick (about 1.4 mm or 1/16 inch)<br> Perfect for framing 8x10 photo in an 11x14 picture frame. Great decoration for your frames and photos . <br> Package included: 12pcs white 11x14 picture mat boards.<br> Some deviation in size may exist due to manually measured.