It's a 16x20 canvas covered in black fabric which is stapled to the back. Each month is 4.75x3.75 inches with a 5x4 inch mat behind it. The month titles are made from plain chipboard that I colored with Acrylic Dabbers. The title CELEBRATE is made from a collection of several chipboard letter packs. The papers were all types and were just whatever I had at hand. I also threw in charms, paper clips and such.