Ideal for layout, design and type specification. This professional set contains a transparent type gauge and a transparent type specifier, each measuring 4-1/2" x 12-3/8". Each has accurate fine calibrations on a transparent, non-glare surface for full visibility. Each is flexible for measuring flat, curved or cylindrical surfaces. The type gauge ruler has type gauge specifications printed on it as well as metric, inch and agate scales. The specifier is printed with an E-scale chart, printerÃ† s point size scale, leading gauge, inch scale, line rulers, bullets and squares.