BMI Viso tape measures are a special purpose measuring tape with 3 functions: Longitudinal measuring, internal measuring, radii drawing (up to 6 m in diameter). The graduation in the window is not displayed upside down (no reading errors possible). The steel stylus integrated in the swing-out arm allows you to draw the radii up to 6 m in diameter and the case is made from a break-proof polyamide for additional durability, supplied with a belt clip and power lock button. Available in both metric and metric/imperial variations