The Staedtler Isometric Layout Bond Pad is 8.5" x 11" with 30 sheets of paper. Each sheet is printed with a non-photo blue grid which allows the lines to disappear when copied. This pad is suitable for pencil and ink. The isometric grid layout has horizontal lines spaced 5mm apart with diagonal lines both to the left and right slant, creating equilateral triangles. The grid is bordered by a thicker line and an outside white boarder