Package Includes: Somime backing boards come with 25pcs uncut mat boards and a sufficient quantity can meet your daily use and replacement demands. They can be used as a part of a frame and mat for extra protection from deterioration. And the whole set is well packaged in a box to prevent shipping damage.

Durable Support Boards: Somime backing boards are made of thick and durable cardboard material that won't bend or break easily. Internal 4-ply thickness(about 1/16 inch) sheets ensure stability. You can combine it with photo mats and clear bags for a better display of your artwork and prints.

Optional Size: Somime photo mat boards measure 12x18, suitable for 12x18 frames. These backing boards can be cut into your desired size and shape to decorate for birthday parties, family gatherings, and weddings. What's more, various sizes are available in this listing.

Acid-free Quality: Acid-free matte boards can well save your precious memories with photos, perfect for framing photographs and artworks with double-sided tape. A flat and smooth surface is also suitable for small object classification and keeping them in a bag for storage.

Multiple Uses: Somime backer board can be used as a photo backing, picture frame, drafting, or display board, which is great for crafts that require strong back support. White cardboard on both sides with can be made for signatures, unique patterns, and other DIY projects for decoration.