|Art Parts Squares & Rectangles - made of a thick, durable, kraft-colored paper board designed exclusively for altering. Cover with fabric, paper, paint, inks, and other liquid mediums. Art Parts do not warp or bend.
Awesome stuff, these! This set has eight pieces, as shown, the largest of which is 3-1/2" x 5-1/2", the smallest is 2-1/2" square