Stanley 33 - 158 This Powerlock - Tape Measure Ruler has a 16 ' (5 m) x 3/4" Blade. Versatile 3/4" blade widths. All blade coated with MYLAR Polyester film for durability. Heat treated spring stands up to repeated use. Positive blade lock does not creep during the measurement. Graduated in 16ths of an inch. Centimeter graduation. Belt clip at the rear of the holster ensures effortless access. Special tru-zero hook does double-duty as a pivot for drawing circles and arcs. Chrome plated ABS housing.