Package: 25 sheets 11x17 Backing Boards.
White Color, Brown Core.
4-Ply Thickness: 1/16 inch thickness provides depth to your picture.
Basic Backing Boards: Ideal use for photos and art. Apply additional support for any backing, frames, photos, artwork, etc.
Great for cutting your own mats for photos, art works, prints, or DIY project.
Golden State Art, 25 Pack 11x17 Bright White Backing Board for Frames, Pictures, Photos and More Review