This 10 piece set includes rectangles measuring 4 x 5.25, 3.75 x 4.875, 3.375 x 4.5, 3.125 x 4.0625, 2.75 x 3.625, 2.5 x 3.25, 2.1875 x 2.875, 1.875 x 2.5, 1.625 x 2.125, 1.25 x 1.625. All approximate measurements are in inches.