12×18 White Backing Board. Color: This cardboard backing has white on both sides and a brown core; our backing boards are made of thick and durable cardboard material that won’t bend or break easily. Our backing boards are made of thick and durable cardboard material that won’t bend or break easily.

Double-sided Boards: backing board has an embossed front and a white back. The embossed side is used for watercolor painting and DIY clip art. The white side is for photo decoration, signing, and making presentations.

12×18 Uncut Mat Boards.

12×18 Uncut Mat Boards.