Mat board white 12' x 16' in

White Mat board, also called passepartout, that fits in a frame sized 11,7 x 15,7 in. The opening in this Mat board is 7,9 x 11,2 in and fits a

12x16 Double 25 Pack (For Digital Sizes) (Conservation) - includes mats, 1/8 Acid-Free Foamcore backing and sleeves! - MatShop Art Supplies

Black passe-partout for 30x40 frame –

Pack of 10 Acid-free Precut White Color Mats 12x16 Mats Pre-cut for 8x12-inch pictures, photos, artworks Mat Opening Size: 7.5” x 11.5” White Core,

Mat Board Center, Pack of 10, 12x16 for 8x12 White Color Mats - Acid Free, 4-ply Thickness, White Core - for Pictures, Photos, Framing

THIS IS FOR ONE SINGLE MAT only w/oa backing board or bag, Featuring a picture opening for a 8x10 inch photo, and a 12x16 inch overall size. Picture

8x10 Mat for 12x16 Frame - Precut Mat Board Acid-Free White 8x10 Photo Matte Made to Fit a 12x16 Picture Frame, Premium Matboard for Family Photos

White Picture Mat Mattes White Core Bevel Acid Free Mat - Temu

Pre-Sized Crescent #918 Very White (Regular Mat Board)

Package included: 12pcs white 12x16 uncut picture mat boards, backign boards Core & Thickness: Each picture mat board is white core and 4-ply

Frametory, 12x16 White Uncut Picture Mat Boards, Backing Boards for Frames, Photos, Crafts - Pack of 12

THIS IS FOR ONE SINGLE MAT only w/oa backing board or bag, Featuring a picture opening for a 12x16 inch photo, and a 16x20 inch overall size. Picture

12x16 Mat for 16x20 Frame - Precut Mat Board Acid-Free Textured White 12x16 Photo Matte For a 16x20 Picture Frame, Premium Matboard for Family Photos

NB MB-8111216W

Pre-Cut Mat Board (White) - Inner 8 x 11, Outer 12 x 16

THIS IS FOR ONE SINGLE MAT without backing and bags , Featuring a picture opening for a 8x12 inch photo, to fit in a 12x16 inch picture frame. Photo

12x16 Mat for 8x12 Photo - Precut White on White Double Mat Picture Matboard for Frames Measuring 12 x 16 Inches - Bevel Cut Matte to Display Art

Conservation White Backer Boards are solid bright white boards ideal for backing and adding some stiffness to unframed mats.

12x16 Conservation White Backing Board