Features easy-to-read black and white markings printed in 1 inch grids marked in 1/8 inch and 1/4 inch increments.;Use the easy-to-read, black numbers (printed on white dots) and the 1/4 inch grip sides to cut whole inches.;The 1/4 inch dashed lines printed on two adjoining sides aid in trimming seam allowances.;Use the white 45 degree angle to trim half-square triangles in whole inch increments. Use the black 45 degree angle to trim half-square triangles in half inch increments.;Also features a 30 degree / 60 degree angles.