Mat Board Center, Pack of 25, 12x12 White Backing Boards - 4-ply Thickness - for Pictures, Photos, Framing Support - Great for DIY Projects, Art

12x12-inch Uncut Back Boards Sturdy 4-ply (1/16in - 1.4mm) Backing Boards for signs, DIY projects, Artworks Our backing boards are made from paper and

Chipboard - Cardboard Medium Weight. 8 12 x 11 inch Chipboard Pads - .022 inch Thick (100 per Pack), Size: 4, Gold

Mat Board Center, Pack of 20, 12x12 for 8x8 White

Mat Board Center, White Backing Boards - Full Sheet - for Art, Prints, Photos, Prints and More, 10 Pack, 12x12

AUEAR, Black 12x12 Uncut Mat Matte Boards for Picture

Golden State Art, 12x18 White Backing Board, Backer

Mat Board Center, Pack of 50 White Backing Boards, 4-ply Thickness

Mat Board Center, Pack of 20 12x12 Uncut Photo Mats, White Backing Boards - for Photos, Prints, Frames and More

Mat Board Center, 9x12 Uncut Photo Mat Boards - Full Sheet - for Art, Prints, Photos, Prints and More, White Color, 25-Pack

Pack of 10 Acid-free Precut White Color Mats 12x12 Mats Pre-cut for 8x8-inch pictures, photos, artworks Inner Mat Opening Size: 7.5” x 7.5” inches

Mat Board Center, Pack of 10, 12x12 for 8x8 White Color Mats - Acid Free, 4-ply Thickness, White Core - for Pictures, Photos, Framing

Mat Board Center, Pack of 25, 12x12 White Backing Boards - 4-ply Thickness - for Pictures, Photos, Framing Support - Great for DIY Projects, Art, Prints : : Office Products

Mat Board Center, 50 Pieces 8x10 White Uncut Mat Boards Backing Boards - Full Sheet - Great for Pictures, Frames, Crafts and More

Mat Board Center, Pack of 10, 14x14 for 10x10 White

PACKAGE INCLUDES: 50 full sheets of uncut backing boards. OVERALL SIZE: 8 x 10 inches, 4-Ply thick (1.4 mm or 1/16 inch). This backer board is white

MBC MAT BOARD CENTER, 12x12 White Backing Matte Boards, 4-ply Thickness - for Art, Prints, Photos, Prints and More (50 Pack)

Pack of 25, 11x14 Pre-cut Mat with Whitecore fits 8x10 Picture + Backing + Bags.