Standard Pack = 1 piece(s). Designed for measuring Diameters of pipe, cable, tires, etc.; this Tape comes with a polished-chrome case and a spring-action blade return. Plus its easy-to-read blade comes with bold graduations on a yellow background. And zero falls in the same place on each side of the blade for easy conversion from Diameter to circumference. A20 blade. 6 mm x 2 m. Model Number: W606PM