As height of person plays an important role in treatment. Especially BMI, Body Mass Index (BMI) is a calculated value which allows you to define how well the mass of the human body corresponds to the height and consequently a degree of over- or underweightness. Using BMI you can try to estimate the risk of developing an illness due to excess or low weight. Easy to assemble and simple to use HM200PW makes weighing an easy routine job. Product Description HM200PW is an height measuring rod for mounting on the wall. Measuring range 14~205cm Division 1mm Manual type