Also known as 2-1/2 x 4-1/2. I just cut and cut and cut. I guess that's why it's called Fishes and Loaves. You never run out of pieces, no matter how hard you try! You can lay the blocks out in so many different ways and no 2 quilts look the same. You can make the quilts any size you want. Good use of scraps. I've machine quilted and I've tied. Children and grown-ups alike love these quilts. They look at all the different fabrics and always can pick out something that reminds them of something else. It's cool to see their eyes light up.